[PATCH v3 0/7] ASoC: topology: Change to resource managed memory

[PATCH v3 0/7] ASoC: topology: Change to resource managed memory

[Amadeusz Sławiński]

Almost all other allocations in ASoC API are resource managed, the only
exception is soc-topology.c.

This patchset clean ups few unnecessary functions in preparation for
change and then changes to devm_ functions for allocation.

Amadeusz Sławiński (6):
  ASoC: topology: Remove unused functions from topology API
  ASoC: topology: Remove multistep topology loading
  ASoC: topology: Unify all device references
  ASoC: topology: Change allocations to resource managed
  ASoC: topology: Remove empty functions
  ASoC: topology: Simplify remove_widget function

 include/sound/soc-topology.h           |  13 +-
 sound/soc/intel/skylake/skl-topology.c |   9 +-
 sound/soc/soc-topology.c               | 302 +++++--------------------
 sound/soc/sof/pcm.c                    |   2 +-
 sound/soc/sof/topology.c               |   4 +-
 5 files changed, 57 insertions(+), 273 deletions(-)

-- 
2.25.1

Re: [PATCH v3 0/7] ASoC: topology: Change to resource managed memory

[Amadeusz Sławiński]

On 10/30/2020 3:54 PM, Amadeusz Sławiński wrote:
> Almost all other allocations in ASoC API are resource managed, the only
> exception is soc-topology.c.
> 
> This patchset clean ups few unnecessary functions in preparation for
> change and then changes to devm_ functions for allocation.
> 
> Amadeusz Sławiński (6):
>    ASoC: topology: Remove unused functions from topology API
>    ASoC: topology: Remove multistep topology loading
>    ASoC: topology: Unify all device references
>    ASoC: topology: Change allocations to resource managed
>    ASoC: topology: Remove empty functions
>    ASoC: topology: Simplify remove_widget function
> 
>   include/sound/soc-topology.h           |  13 +-
>   sound/soc/intel/skylake/skl-topology.c |   9 +-
>   sound/soc/soc-topology.c               | 302 +++++--------------------
>   sound/soc/sof/pcm.c                    |   2 +-
>   sound/soc/sof/topology.c               |   4 +-
>   5 files changed, 57 insertions(+), 273 deletions(-)
> 

Eh... and of course I've messed up something, there shouldn't be v3 in 
the topic of cover letter ;) I can resend if you want?

RE: [PATCH v3 0/7] ASoC: topology: Change to resource managed memory

[Rojewski, Cezary]

On 2020-10-30 3:54 PM, Amadeusz Sławiński wrote:
> Almost all other allocations in ASoC API are resource managed, the only
> exception is soc-topology.c.
> 
> This patchset clean ups few unnecessary functions in preparation for
> change and then changes to devm_ functions for allocation.
> 

These address some of the long standing issues of resource allocation
for topology, thanks for your work.
Nitpick:
*the 0/7* looks weird given that only 6 patches are actually part of the
series.

For the series:

Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>

Thanks,
Czarek

> Amadeusz Sławiński (6):
>    ASoC: topology: Remove unused functions from topology API
>    ASoC: topology: Remove multistep topology loading
>    ASoC: topology: Unify all device references
>    ASoC: topology: Change allocations to resource managed
>    ASoC: topology: Remove empty functions
>    ASoC: topology: Simplify remove_widget function
> 
>   include/sound/soc-topology.h           |  13 +-
>   sound/soc/intel/skylake/skl-topology.c |   9 +-
>   sound/soc/soc-topology.c               | 302 +++++--------------------
>   sound/soc/sof/pcm.c                    |   2 +-
>   sound/soc/sof/topology.c               |   4 +-
>   5 files changed, 57 insertions(+), 273 deletions(-)
>

Re: [PATCH v3 0/7] ASoC: topology: Change to resource managed memory

[Amadeusz Sławiński]

On 10/30/2020 3:23 PM, Rojewski, Cezary wrote:
> On 2020-10-30 3:54 PM, Amadeusz Sławiński wrote:
>> Almost all other allocations in ASoC API are resource managed, the only
>> exception is soc-topology.c.
>>
>> This patchset clean ups few unnecessary functions in preparation for
>> change and then changes to devm_ functions for allocation.
>>
> 
> These address some of the long standing issues of resource allocation
> for topology, thanks for your work.
> Nitpick:
> *the 0/7* looks weird given that only 6 patches are actually part of the
> series.

Yes that was a copy&paste mistake, similarly to already mentioned v3. 
There is only 6 patches.

It is a problem caused by manually filling cover letter and copying 
title from old cover letter to new one.

I did some reading, and apparently if one operates on branches to 
prepare patch sets, they can do something like:
$ git branch --edit-description
$ git format-patch -6 --cover-letter --cover-from-description=subject
And git will automatically populate cover letter with text from branch 
description. I will try to remember to try it when sending another 
series. Hopefully this will allow me to avoid copy&paste mistakes, as 
filling cover letter title and description will be automated ;)

Mark, do let me know if you want me to resend.

> 
> For the series:
> 
> Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
> 
> Thanks,
> Czarek
> 
>> Amadeusz Sławiński (6):
>>     ASoC: topology: Remove unused functions from topology API
>>     ASoC: topology: Remove multistep topology loading
>>     ASoC: topology: Unify all device references
>>     ASoC: topology: Change allocations to resource managed
>>     ASoC: topology: Remove empty functions
>>     ASoC: topology: Simplify remove_widget function
>>
>>    include/sound/soc-topology.h           |  13 +-
>>    sound/soc/intel/skylake/skl-topology.c |   9 +-
>>    sound/soc/soc-topology.c               | 302 +++++--------------------
>>    sound/soc/sof/pcm.c                    |   2 +-
>>    sound/soc/sof/topology.c               |   4 +-
>>    5 files changed, 57 insertions(+), 273 deletions(-)
>>

[PATCH 1/6] ASoC: topology: Remove unused functions from topology API

[Amadeusz Sławiński]

From: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>

Topology API exposes snd_soc_tplg_widget_remove and
snd_soc_tplg_widget_remove_all, but both are nowhere used. All current
users load and unload topology as a whole. As following commits
introduce resource managed memory, remove them to simplify code and
reduce maintenance burden.

Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
---
 include/sound/soc-topology.h |  5 -----
 sound/soc/soc-topology.c     | 37 +-----------------------------------
 2 files changed, 1 insertion(+), 41 deletions(-)

diff --git a/include/sound/soc-topology.h b/include/sound/soc-topology.h
index 5223896de26f..b1ac5df82dba 100644
--- a/include/sound/soc-topology.h
+++ b/include/sound/soc-topology.h
@@ -185,11 +185,6 @@ int snd_soc_tplg_component_load(struct snd_soc_component *comp,
 	u32 index);
 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index);
 
-/* Widget removal - widgets also removed wth component API */
-void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w);
-void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm,
-	u32 index);
-
 /* Binds event handlers to dynamic widgets */
 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
 	const struct snd_soc_tplg_widget_events *events, int num_events,
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index c5ef432a023b..7919097c162f 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -1725,7 +1725,7 @@ static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg,
 	return 0;
 
 ready_err:
-	snd_soc_tplg_widget_remove(widget);
+	remove_widget(widget->dapm->component, &widget->dobj, SOC_TPLG_PASS_WIDGET);
 	snd_soc_dapm_free_widget(widget);
 hdr_err:
 	kfree(template.sname);
@@ -2834,41 +2834,6 @@ int snd_soc_tplg_component_load(struct snd_soc_component *comp,
 }
 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
 
-/* remove this dynamic widget */
-void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w)
-{
-	/* make sure we are a widget */
-	if (w->dobj.type != SND_SOC_DOBJ_WIDGET)
-		return;
-
-	remove_widget(w->dapm->component, &w->dobj, SOC_TPLG_PASS_WIDGET);
-}
-EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove);
-
-/* remove all dynamic widgets from this DAPM context */
-void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm,
-	u32 index)
-{
-	struct snd_soc_dapm_widget *w, *next_w;
-
-	for_each_card_widgets_safe(dapm->card, w, next_w) {
-
-		/* make sure we are a widget with correct context */
-		if (w->dobj.type != SND_SOC_DOBJ_WIDGET || w->dapm != dapm)
-			continue;
-
-		/* match ID */
-		if (w->dobj.index != index &&
-			w->dobj.index != SND_SOC_TPLG_INDEX_ALL)
-			continue;
-		/* check and free and dynamic widget kcontrols */
-		snd_soc_tplg_widget_remove(w);
-		snd_soc_dapm_free_widget(w);
-	}
-	snd_soc_dapm_reset_cache(dapm);
-}
-EXPORT_SYMBOL_GPL(snd_soc_tplg_widget_remove_all);
-
 /* remove dynamic controls from the component driver */
 int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
 {
-- 
2.25.1

[PATCH 2/6] ASoC: topology: Remove multistep topology loading

[Amadeusz Sławiński]

From: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>

In theory topology can be loaded in multiple steps by providing index to
snd_soc_tplg_component_load, however, from usability point of view it
doesn't make sense, as can be seen from all current users loading
topology in one go. Remove the unnecessary parameter.

Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
---
 include/sound/soc-topology.h           |  8 ++------
 sound/soc/intel/skylake/skl-topology.c |  9 ++-------
 sound/soc/soc-topology.c               | 18 +++---------------
 sound/soc/sof/pcm.c                    |  2 +-
 sound/soc/sof/topology.c               |  4 +---
 5 files changed, 9 insertions(+), 32 deletions(-)

diff --git a/include/sound/soc-topology.h b/include/sound/soc-topology.h
index b1ac5df82dba..328cf763d9b4 100644
--- a/include/sound/soc-topology.h
+++ b/include/sound/soc-topology.h
@@ -31,9 +31,6 @@ struct snd_soc_dai_driver;
 struct snd_soc_dai;
 struct snd_soc_dapm_route;
 
-/* object scan be loaded and unloaded in groups with identfying indexes */
-#define SND_SOC_TPLG_INDEX_ALL	0	/* ID that matches all FW objects */
-
 /* dynamic object type */
 enum snd_soc_dobj_type {
 	SND_SOC_DOBJ_NONE		= 0,	/* object is not dynamic */
@@ -181,9 +178,8 @@ static inline const void *snd_soc_tplg_get_data(struct snd_soc_tplg_hdr *hdr)
 
 /* Dynamic Object loading and removal for component drivers */
 int snd_soc_tplg_component_load(struct snd_soc_component *comp,
-	struct snd_soc_tplg_ops *ops, const struct firmware *fw,
-	u32 index);
-int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index);
+	struct snd_soc_tplg_ops *ops, const struct firmware *fw);
+int snd_soc_tplg_component_remove(struct snd_soc_component *comp);
 
 /* Binds event handlers to dynamic widgets */
 int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c
index 40bee10b0c65..ae466cd59292 100644
--- a/sound/soc/intel/skylake/skl-topology.c
+++ b/sound/soc/intel/skylake/skl-topology.c
@@ -3742,12 +3742,7 @@ int skl_tplg_init(struct snd_soc_component *component, struct hdac_bus *bus)
 	}
 
 component_load:
-
-	/*
-	 * The complete tplg for SKL is loaded as index 0, we don't use
-	 * any other index
-	 */
-	ret = snd_soc_tplg_component_load(component, &skl_tplg_ops, fw, 0);
+	ret = snd_soc_tplg_component_load(component, &skl_tplg_ops, fw);
 	if (ret < 0) {
 		dev_err(bus->dev, "tplg component load failed%d\n", ret);
 		goto err;
@@ -3777,5 +3772,5 @@ void skl_tplg_exit(struct snd_soc_component *component, struct hdac_bus *bus)
 		list_del(&ppl->node);
 
 	/* clean up topology */
-	snd_soc_tplg_component_remove(component, SND_SOC_TPLG_INDEX_ALL);
+	snd_soc_tplg_component_remove(component);
 }
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 7919097c162f..2a71cec7277e 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -64,7 +64,6 @@ struct soc_tplg {
 	struct device *dev;
 	struct snd_soc_component *comp;
 	u32 index;	/* current block index */
-	u32 req_index;	/* required index, only loaded/free matching blocks */
 
 	/* vendor specific kcontrol operations */
 	const struct snd_soc_tplg_kcontrol_ops *io_ops;
@@ -2680,11 +2679,6 @@ static int soc_tplg_load_header(struct soc_tplg *tplg,
 
 	tplg->pos = tplg->hdr_pos + sizeof(struct snd_soc_tplg_hdr);
 
-	/* check for matching ID */
-	if (le32_to_cpu(hdr->index) != tplg->req_index &&
-		tplg->req_index != SND_SOC_TPLG_INDEX_ALL)
-		return 0;
-
 	tplg->index = le32_to_cpu(hdr->index);
 
 	switch (le32_to_cpu(hdr->type)) {
@@ -2804,7 +2798,7 @@ static int soc_tplg_load(struct soc_tplg *tplg)
 
 /* load audio component topology from "firmware" file */
 int snd_soc_tplg_component_load(struct snd_soc_component *comp,
-	struct snd_soc_tplg_ops *ops, const struct firmware *fw, u32 id)
+	struct snd_soc_tplg_ops *ops, const struct firmware *fw)
 {
 	struct soc_tplg tplg;
 	int ret;
@@ -2819,7 +2813,6 @@ int snd_soc_tplg_component_load(struct snd_soc_component *comp,
 	tplg.dev = comp->dev;
 	tplg.comp = comp;
 	tplg.ops = ops;
-	tplg.req_index = id;
 	tplg.io_ops = ops->io_ops;
 	tplg.io_ops_count = ops->io_ops_count;
 	tplg.bytes_ext_ops = ops->bytes_ext_ops;
@@ -2828,14 +2821,14 @@ int snd_soc_tplg_component_load(struct snd_soc_component *comp,
 	ret = soc_tplg_load(&tplg);
 	/* free the created components if fail to load topology */
 	if (ret)
-		snd_soc_tplg_component_remove(comp, SND_SOC_TPLG_INDEX_ALL);
+		snd_soc_tplg_component_remove(comp);
 
 	return ret;
 }
 EXPORT_SYMBOL_GPL(snd_soc_tplg_component_load);
 
 /* remove dynamic controls from the component driver */
-int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
+int snd_soc_tplg_component_remove(struct snd_soc_component *comp)
 {
 	struct snd_soc_dobj *dobj, *next_dobj;
 	int pass = SOC_TPLG_PASS_END;
@@ -2847,11 +2840,6 @@ int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index)
 		list_for_each_entry_safe(dobj, next_dobj, &comp->dobj_list,
 			list) {
 
-			/* match index */
-			if (dobj->index != index &&
-				index != SND_SOC_TPLG_INDEX_ALL)
-				continue;
-
 			switch (dobj->type) {
 			case SND_SOC_DOBJ_MIXER:
 				remove_mixer(comp, dobj, pass);
diff --git a/sound/soc/sof/pcm.c b/sound/soc/sof/pcm.c
index cbac6f17c52f..0a70e685f826 100644
--- a/sound/soc/sof/pcm.c
+++ b/sound/soc/sof/pcm.c
@@ -780,7 +780,7 @@ static int sof_pcm_probe(struct snd_soc_component *component)
 static void sof_pcm_remove(struct snd_soc_component *component)
 {
 	/* remove topology */
-	snd_soc_tplg_component_remove(component, SND_SOC_TPLG_INDEX_ALL);
+	snd_soc_tplg_component_remove(component);
 }
 
 void snd_sof_new_platform_drv(struct snd_sof_dev *sdev)
diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c
index 523a386fce4b..44fddeda6043 100644
--- a/sound/soc/sof/topology.c
+++ b/sound/soc/sof/topology.c
@@ -3734,9 +3734,7 @@ int snd_sof_load_topology(struct snd_soc_component *scomp, const char *file)
 		return ret;
 	}
 
-	ret = snd_soc_tplg_component_load(scomp,
-					  &sof_tplg_ops, fw,
-					  SND_SOC_TPLG_INDEX_ALL);
+	ret = snd_soc_tplg_component_load(scomp, &sof_tplg_ops, fw);
 	if (ret < 0) {
 		dev_err(scomp->dev, "error: tplg component load failed %d\n",
 			ret);
-- 
2.25.1

[PATCH 3/6] ASoC: topology: Unify all device references

[Amadeusz Sławiński]

From: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>

In few places tplg->comp->dev is used, while everywhere else tplg->dev
is being used. Unify those uses towards tplg->dev, as it is being set to
comp->dev during initialization anyway.

Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
---
 sound/soc/soc-topology.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 2a71cec7277e..9d95c1b01c5a 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -1865,7 +1865,7 @@ static int soc_tplg_dai_create(struct soc_tplg *tplg,
 	/* pass control to component driver for optional further init */
 	ret = soc_tplg_dai_load(tplg, dai_drv, pcm, NULL);
 	if (ret < 0) {
-		dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
+		dev_err(tplg->dev, "ASoC: DAI loading failed\n");
 		goto err;
 	}
 
@@ -1875,7 +1875,7 @@ static int soc_tplg_dai_create(struct soc_tplg *tplg,
 	list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
 
 	/* register the DAI to the component */
-	dai = devm_snd_soc_register_dai(tplg->comp->dev, tplg->comp, dai_drv, false);
+	dai = devm_snd_soc_register_dai(tplg->dev, tplg->comp, dai_drv, false);
 	if (!dai)
 		return -ENOMEM;
 
@@ -1982,13 +1982,13 @@ static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
 	/* pass control to component driver for optional further init */
 	ret = soc_tplg_dai_link_load(tplg, link, NULL);
 	if (ret < 0) {
-		dev_err(tplg->comp->dev, "ASoC: FE link loading failed\n");
+		dev_err(tplg->dev, "ASoC: FE link loading failed\n");
 		goto err;
 	}
 
 	ret = snd_soc_add_pcm_runtime(tplg->comp->card, link);
 	if (ret < 0) {
-		dev_err(tplg->comp->dev, "ASoC: adding FE link failed\n");
+		dev_err(tplg->dev, "ASoC: adding FE link failed\n");
 		goto err;
 	}
 
@@ -2493,7 +2493,7 @@ static int soc_tplg_dai_config(struct soc_tplg *tplg,
 	/* pass control to component driver for optional further init */
 	ret = soc_tplg_dai_load(tplg, dai_drv, NULL, dai);
 	if (ret < 0) {
-		dev_err(tplg->comp->dev, "ASoC: DAI loading failed\n");
+		dev_err(tplg->dev, "ASoC: DAI loading failed\n");
 		goto err;
 	}
 
-- 
2.25.1

[PATCH 4/6] ASoC: topology: Change allocations to resource managed

[Amadeusz Sławiński]

From: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>

In order for topology to be resource managed, change all allocations to
be resource managed:
k*alloc -> devm_k*alloc
kstrdup -> devm_kstrdup

Exceptions where non resource managed allocation is left is
soc_tplg_dapm_widget_create(), as it uses pointer to memory locally and
frees it up after use, as well as soc_tplg_dapm_graph_elems_load(),
which has temporary pointer to table of routes.

After conversion all redundant calls in error and clean up paths were
removed.

Also removed some variables which become unneeded when there is no calls
using them.

Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
---
 sound/soc/soc-topology.c | 171 +++++++++------------------------------
 1 file changed, 40 insertions(+), 131 deletions(-)

diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 9d95c1b01c5a..6ef508f56a5f 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -359,9 +359,6 @@ static void remove_mixer(struct snd_soc_component *comp,
 	struct snd_soc_dobj *dobj, int pass)
 {
 	struct snd_card *card = comp->card->snd_card;
-	struct soc_mixer_control *sm =
-		container_of(dobj, struct soc_mixer_control, dobj);
-	const unsigned int *p = NULL;
 
 	if (pass != SOC_TPLG_PASS_MIXER)
 		return;
@@ -369,12 +366,8 @@ static void remove_mixer(struct snd_soc_component *comp,
 	if (dobj->ops && dobj->ops->control_unload)
 		dobj->ops->control_unload(comp, dobj);
 
-	if (dobj->control.kcontrol->tlv.p)
-		p = dobj->control.kcontrol->tlv.p;
 	snd_ctl_remove(card, dobj->control.kcontrol);
 	list_del(&dobj->list);
-	kfree(sm);
-	kfree(p);
 }
 
 /* remove an enum kcontrol */
@@ -395,7 +388,6 @@ static void remove_enum(struct snd_soc_component *comp,
 
 	soc_tplg_denum_remove_values(se);
 	soc_tplg_denum_remove_texts(se);
-	kfree(se);
 }
 
 /* remove a byte kcontrol */
@@ -403,8 +395,6 @@ static void remove_bytes(struct snd_soc_component *comp,
 	struct snd_soc_dobj *dobj, int pass)
 {
 	struct snd_card *card = comp->card->snd_card;
-	struct soc_bytes_ext *sb =
-		container_of(dobj, struct soc_bytes_ext, dobj);
 
 	if (pass != SOC_TPLG_PASS_MIXER)
 		return;
@@ -414,16 +404,12 @@ static void remove_bytes(struct snd_soc_component *comp,
 
 	snd_ctl_remove(card, dobj->control.kcontrol);
 	list_del(&dobj->list);
-	kfree(sb);
 }
 
 /* remove a route */
 static void remove_route(struct snd_soc_component *comp,
 			 struct snd_soc_dobj *dobj, int pass)
 {
-	struct snd_soc_dapm_route *route =
-		container_of(dobj, struct snd_soc_dapm_route, dobj);
-
 	if (pass != SOC_TPLG_PASS_GRAPH)
 		return;
 
@@ -431,7 +417,6 @@ static void remove_route(struct snd_soc_component *comp,
 		dobj->ops->dapm_route_unload(comp, dobj);
 
 	list_del(&dobj->list);
-	kfree(route);
 }
 
 /* remove a widget and it's kcontrols - routes must be removed first */
@@ -469,30 +454,17 @@ static void remove_widget(struct snd_soc_component *comp,
 			soc_tplg_denum_remove_values(se);
 			soc_tplg_denum_remove_texts(se);
 
-			kfree(se);
-			kfree(w->kcontrol_news[i].name);
 		}
 	} else {
 		/* volume mixer or bytes controls */
 		for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
 			struct snd_kcontrol *kcontrol = w->kcontrols[i];
 
-			if (dobj->widget.kcontrol_type
-			    == SND_SOC_TPLG_TYPE_MIXER)
-				kfree(kcontrol->tlv.p);
-
-			/* Private value is used as struct soc_mixer_control
-			 * for volume mixers or soc_bytes_ext for bytes
-			 * controls.
-			 */
-			kfree((void *)kcontrol->private_value);
 			snd_ctl_remove(card, kcontrol);
-			kfree(w->kcontrol_news[i].name);
 		}
 	}
 
 free_news:
-	kfree(w->kcontrol_news);
 
 	list_del(&dobj->list);
 
@@ -517,11 +489,7 @@ static void remove_dai(struct snd_soc_component *comp,
 		if (dai->driver == dai_drv)
 			dai->driver = NULL;
 
-	kfree(dai_drv->playback.stream_name);
-	kfree(dai_drv->capture.stream_name);
-	kfree(dai_drv->name);
 	list_del(&dobj->list);
-	kfree(dai_drv);
 }
 
 /* remove link configurations */
@@ -540,11 +508,6 @@ static void remove_link(struct snd_soc_component *comp,
 	list_del(&dobj->list);
 	snd_soc_remove_pcm_runtime(comp->card,
 			snd_soc_get_pcm_runtime(comp->card, link));
-
-	kfree(link->name);
-	kfree(link->stream_name);
-	kfree(link->cpus->dai_name);
-	kfree(link);
 }
 
 /* unload dai link */
@@ -699,7 +662,7 @@ static int soc_tplg_create_tlv_db_scale(struct soc_tplg *tplg,
 	unsigned int item_len = 2 * sizeof(unsigned int);
 	unsigned int *p;
 
-	p = kzalloc(item_len + 2 * sizeof(unsigned int), GFP_KERNEL);
+	p = devm_kzalloc(tplg->dev, item_len + 2 * sizeof(unsigned int), GFP_KERNEL);
 	if (!p)
 		return -ENOMEM;
 
@@ -743,7 +706,6 @@ static int soc_tplg_create_tlv(struct soc_tplg *tplg,
 static inline void soc_tplg_free_tlv(struct soc_tplg *tplg,
 	struct snd_kcontrol_new *kc)
 {
-	kfree(kc->tlv.p);
 }
 
 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
@@ -771,7 +733,7 @@ static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
 			SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
 			return -EINVAL;
 
-		sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
+		sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL);
 		if (sbe == NULL)
 			return -ENOMEM;
 
@@ -797,7 +759,6 @@ static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
 		err = soc_tplg_kcontrol_bind_io(&be->hdr, &kc, tplg);
 		if (err) {
 			soc_control_err(tplg, &be->hdr, be->hdr.name);
-			kfree(sbe);
 			break;
 		}
 
@@ -807,7 +768,6 @@ static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
 		if (err < 0) {
 			dev_err(tplg->dev, "ASoC: failed to init %s\n",
 				be->hdr.name);
-			kfree(sbe);
 			break;
 		}
 
@@ -817,7 +777,6 @@ static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
 		if (err < 0) {
 			dev_err(tplg->dev, "ASoC: failed to add %s\n",
 				be->hdr.name);
-			kfree(sbe);
 			break;
 		}
 
@@ -853,7 +812,7 @@ static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
 			SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
 			return -EINVAL;
 
-		sm = kzalloc(sizeof(*sm), GFP_KERNEL);
+		sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL);
 		if (sm == NULL)
 			return -ENOMEM;
 		tplg->pos += (sizeof(struct snd_soc_tplg_mixer_control) +
@@ -892,7 +851,6 @@ static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
 		err = soc_tplg_kcontrol_bind_io(&mc->hdr, &kc, tplg);
 		if (err) {
 			soc_control_err(tplg, &mc->hdr, mc->hdr.name);
-			kfree(sm);
 			break;
 		}
 
@@ -901,7 +859,6 @@ static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
 		if (err < 0) {
 			dev_err(tplg->dev, "ASoC: failed to create TLV %s\n",
 				mc->hdr.name);
-			kfree(sm);
 			break;
 		}
 
@@ -912,7 +869,6 @@ static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
 			dev_err(tplg->dev, "ASoC: failed to init %s\n",
 				mc->hdr.name);
 			soc_tplg_free_tlv(tplg, &kc);
-			kfree(sm);
 			break;
 		}
 
@@ -923,7 +879,6 @@ static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
 			dev_err(tplg->dev, "ASoC: failed to add %s\n",
 				mc->hdr.name);
 			soc_tplg_free_tlv(tplg, &kc);
-			kfree(sm);
 			break;
 		}
 
@@ -933,13 +888,13 @@ static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
 	return err;
 }
 
-static int soc_tplg_denum_create_texts(struct soc_enum *se,
-	struct snd_soc_tplg_enum_control *ec)
+static int soc_tplg_denum_create_texts(struct soc_tplg *tplg, struct soc_enum *se,
+				       struct snd_soc_tplg_enum_control *ec)
 {
 	int i, ret;
 
 	se->dobj.control.dtexts =
-		kcalloc(le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL);
+		devm_kcalloc(tplg->dev, le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL);
 	if (se->dobj.control.dtexts == NULL)
 		return -ENOMEM;
 
@@ -951,7 +906,7 @@ static int soc_tplg_denum_create_texts(struct soc_enum *se,
 			goto err;
 		}
 
-		se->dobj.control.dtexts[i] = kstrdup(ec->texts[i], GFP_KERNEL);
+		se->dobj.control.dtexts[i] = devm_kstrdup(tplg->dev, ec->texts[i], GFP_KERNEL);
 		if (!se->dobj.control.dtexts[i]) {
 			ret = -ENOMEM;
 			goto err;
@@ -970,22 +925,17 @@ static int soc_tplg_denum_create_texts(struct soc_enum *se,
 
 static inline void soc_tplg_denum_remove_texts(struct soc_enum *se)
 {
-	int i = se->items;
-
-	for (--i; i >= 0; i--)
-		kfree(se->dobj.control.dtexts[i]);
-	kfree(se->dobj.control.dtexts);
 }
 
-static int soc_tplg_denum_create_values(struct soc_enum *se,
-	struct snd_soc_tplg_enum_control *ec)
+static int soc_tplg_denum_create_values(struct soc_tplg *tplg, struct soc_enum *se,
+					struct snd_soc_tplg_enum_control *ec)
 {
 	int i;
 
 	if (le32_to_cpu(ec->items) > sizeof(*ec->values))
 		return -EINVAL;
 
-	se->dobj.control.dvalues = kzalloc(le32_to_cpu(ec->items) *
+	se->dobj.control.dvalues = devm_kzalloc(tplg->dev, le32_to_cpu(ec->items) *
 					   sizeof(u32),
 					   GFP_KERNEL);
 	if (!se->dobj.control.dvalues)
@@ -1001,7 +951,6 @@ static int soc_tplg_denum_create_values(struct soc_enum *se,
 
 static inline void soc_tplg_denum_remove_values(struct soc_enum *se)
 {
-	kfree(se->dobj.control.dvalues);
 }
 
 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
@@ -1030,7 +979,7 @@ static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
 			SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
 			return -EINVAL;
 
-		se = kzalloc((sizeof(*se)), GFP_KERNEL);
+		se = devm_kzalloc(tplg->dev, (sizeof(*se)), GFP_KERNEL);
 		if (se == NULL)
 			return -ENOMEM;
 
@@ -1061,7 +1010,7 @@ static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
 		switch (le32_to_cpu(ec->hdr.ops.info)) {
 		case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
 		case SND_SOC_TPLG_CTL_ENUM_VALUE:
-			err = soc_tplg_denum_create_values(se, ec);
+			err = soc_tplg_denum_create_values(tplg, se, ec);
 			if (err < 0) {
 				dev_err(tplg->dev,
 					"ASoC: could not create values for %s\n",
@@ -1072,7 +1021,7 @@ static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
 		case SND_SOC_TPLG_CTL_ENUM:
 		case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
 		case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
-			err = soc_tplg_denum_create_texts(se, ec);
+			err = soc_tplg_denum_create_texts(tplg, se, ec);
 			if (err < 0) {
 				dev_err(tplg->dev,
 					"ASoC: could not create texts for %s\n",
@@ -1118,7 +1067,6 @@ static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
 	return 0;
 
 err_denum:
-	kfree(se);
 	return err;
 }
 
@@ -1195,7 +1143,7 @@ static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
 	struct snd_soc_dapm_context *dapm = &tplg->comp->dapm;
 	struct snd_soc_tplg_dapm_graph_elem *elem;
 	struct snd_soc_dapm_route **routes;
-	int count, i, j;
+	int count, i;
 	int ret = 0;
 
 	count = le32_to_cpu(hdr->count);
@@ -1224,15 +1172,9 @@ static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
 	 * each route can be freed when it is removed in remove_route().
 	 */
 	for (i = 0; i < count; i++) {
-		routes[i] = kzalloc(sizeof(*routes[i]), GFP_KERNEL);
-		if (!routes[i]) {
-			/* free previously allocated memory */
-			for (j = 0; j < i; j++)
-				kfree(routes[j]);
-
-			kfree(routes);
+		routes[i] = devm_kzalloc(tplg->dev, sizeof(*routes[i]), GFP_KERNEL);
+		if (!routes[i])
 			return -ENOMEM;
-		}
 	}
 
 	for (i = 0; i < count; i++) {
@@ -1289,15 +1231,6 @@ static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
 		snd_soc_dapm_add_routes(dapm, routes[i], 1);
 	}
 
-	/*
-	 * free memory allocated for all dapm routes not added to the
-	 * list in case of error
-	 */
-	if (ret < 0) {
-		while (i < count)
-			kfree(routes[i++]);
-	}
-
 	/*
 	 * free pointer to array of dapm routes as this is no longer needed.
 	 * The memory allocated for each dapm route will be freed
@@ -1316,7 +1249,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
 	struct snd_soc_tplg_mixer_control *mc;
 	int i, err;
 
-	kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
+	kc = devm_kcalloc(tplg->dev, num_kcontrols, sizeof(*kc), GFP_KERNEL);
 	if (kc == NULL)
 		return NULL;
 
@@ -1328,7 +1261,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
 			SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
 			goto err_sm;
 
-		sm = kzalloc(sizeof(*sm), GFP_KERNEL);
+		sm = devm_kzalloc(tplg->dev, sizeof(*sm), GFP_KERNEL);
 		if (sm == NULL)
 			goto err_sm;
 
@@ -1339,7 +1272,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
 			mc->hdr.name, i);
 
 		kc[i].private_value = (long)sm;
-		kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL);
+		kc[i].name = devm_kstrdup(tplg->dev, mc->hdr.name, GFP_KERNEL);
 		if (kc[i].name == NULL)
 			goto err_sm;
 		kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
@@ -1391,11 +1324,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
 err_sm:
 	for (; i >= 0; i--) {
 		soc_tplg_free_tlv(tplg, &kc[i]);
-		sm = (struct soc_mixer_control *)kc[i].private_value;
-		kfree(sm);
-		kfree(kc[i].name);
 	}
-	kfree(kc);
 
 	return NULL;
 }
@@ -1408,7 +1337,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
 	struct soc_enum *se;
 	int i, err;
 
-	kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
+	kc = devm_kcalloc(tplg->dev, num_kcontrols, sizeof(*kc), GFP_KERNEL);
 	if (kc == NULL)
 		return NULL;
 
@@ -1419,7 +1348,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
 			    SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
 			goto err_se;
 
-		se = kzalloc(sizeof(*se), GFP_KERNEL);
+		se = devm_kzalloc(tplg->dev, sizeof(*se), GFP_KERNEL);
 		if (se == NULL)
 			goto err_se;
 
@@ -1430,7 +1359,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
 			ec->hdr.name);
 
 		kc[i].private_value = (long)se;
-		kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL);
+		kc[i].name = devm_kstrdup(tplg->dev, ec->hdr.name, GFP_KERNEL);
 		if (kc[i].name == NULL)
 			goto err_se;
 		kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
@@ -1450,7 +1379,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
 		switch (le32_to_cpu(ec->hdr.ops.info)) {
 		case SND_SOC_TPLG_CTL_ENUM_VALUE:
 		case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE:
-			err = soc_tplg_denum_create_values(se, ec);
+			err = soc_tplg_denum_create_values(tplg, se, ec);
 			if (err < 0) {
 				dev_err(tplg->dev, "ASoC: could not create values for %s\n",
 					ec->hdr.name);
@@ -1460,7 +1389,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
 		case SND_SOC_TPLG_CTL_ENUM:
 		case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE:
 		case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT:
-			err = soc_tplg_denum_create_texts(se, ec);
+			err = soc_tplg_denum_create_texts(tplg, se, ec);
 			if (err < 0) {
 				dev_err(tplg->dev, "ASoC: could not create texts for %s\n",
 					ec->hdr.name);
@@ -1502,10 +1431,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
 			soc_tplg_denum_remove_texts(se);
 		}
 
-		kfree(se);
-		kfree(kc[i].name);
 	}
-	kfree(kc);
 
 	return NULL;
 }
@@ -1518,7 +1444,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
 	struct snd_kcontrol_new *kc;
 	int i, err;
 
-	kc = kcalloc(num_kcontrols, sizeof(*kc), GFP_KERNEL);
+	kc = devm_kcalloc(tplg->dev, num_kcontrols, sizeof(*kc), GFP_KERNEL);
 	if (!kc)
 		return NULL;
 
@@ -1530,7 +1456,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
 			SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
 			goto err_sbe;
 
-		sbe = kzalloc(sizeof(*sbe), GFP_KERNEL);
+		sbe = devm_kzalloc(tplg->dev, sizeof(*sbe), GFP_KERNEL);
 		if (sbe == NULL)
 			goto err_sbe;
 
@@ -1542,7 +1468,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
 			be->hdr.name, be->hdr.access);
 
 		kc[i].private_value = (long)sbe;
-		kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL);
+		kc[i].name = devm_kstrdup(tplg->dev, be->hdr.name, GFP_KERNEL);
 		if (kc[i].name == NULL)
 			goto err_sbe;
 		kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
@@ -1571,12 +1497,6 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
 	return kc;
 
 err_sbe:
-	for (; i >= 0; i--) {
-		sbe = (struct soc_bytes_ext *)kc[i].private_value;
-		kfree(sbe);
-		kfree(kc[i].name);
-	}
-	kfree(kc);
 
 	return NULL;
 }
@@ -1783,10 +1703,10 @@ static int soc_tplg_dapm_complete(struct soc_tplg *tplg)
 	return 0;
 }
 
-static int set_stream_info(struct snd_soc_pcm_stream *stream,
-	struct snd_soc_tplg_stream_caps *caps)
+static int set_stream_info(struct soc_tplg *tplg, struct snd_soc_pcm_stream *stream,
+			   struct snd_soc_tplg_stream_caps *caps)
 {
-	stream->stream_name = kstrdup(caps->name, GFP_KERNEL);
+	stream->stream_name = devm_kstrdup(tplg->dev, caps->name, GFP_KERNEL);
 	if (!stream->stream_name)
 		return -ENOMEM;
 
@@ -1830,12 +1750,12 @@ static int soc_tplg_dai_create(struct soc_tplg *tplg,
 		snd_soc_component_get_dapm(tplg->comp);
 	int ret;
 
-	dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
+	dai_drv = devm_kzalloc(tplg->dev, sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
 	if (dai_drv == NULL)
 		return -ENOMEM;
 
 	if (strlen(pcm->dai_name)) {
-		dai_drv->name = kstrdup(pcm->dai_name, GFP_KERNEL);
+		dai_drv->name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL);
 		if (!dai_drv->name) {
 			ret = -ENOMEM;
 			goto err;
@@ -1846,7 +1766,7 @@ static int soc_tplg_dai_create(struct soc_tplg *tplg,
 	if (pcm->playback) {
 		stream = &dai_drv->playback;
 		caps = &pcm->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
-		ret = set_stream_info(stream, caps);
+		ret = set_stream_info(tplg, stream, caps);
 		if (ret < 0)
 			goto err;
 	}
@@ -1854,7 +1774,7 @@ static int soc_tplg_dai_create(struct soc_tplg *tplg,
 	if (pcm->capture) {
 		stream = &dai_drv->capture;
 		caps = &pcm->caps[SND_SOC_TPLG_STREAM_CAPTURE];
-		ret = set_stream_info(stream, caps);
+		ret = set_stream_info(tplg, stream, caps);
 		if (ret < 0)
 			goto err;
 	}
@@ -1889,11 +1809,6 @@ static int soc_tplg_dai_create(struct soc_tplg *tplg,
 	return 0;
 
 err:
-	kfree(dai_drv->playback.stream_name);
-	kfree(dai_drv->capture.stream_name);
-	kfree(dai_drv->name);
-	kfree(dai_drv);
-
 	return ret;
 }
 
@@ -1929,7 +1844,7 @@ static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
 	int ret;
 
 	/* link + cpu + codec + platform */
-	link = kzalloc(sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL);
+	link = devm_kzalloc(tplg->dev, sizeof(*link) + (3 * sizeof(*dlc)), GFP_KERNEL);
 	if (link == NULL)
 		return -ENOMEM;
 
@@ -1948,8 +1863,8 @@ static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
 	link->dobj.type = SND_SOC_DOBJ_DAI_LINK;
 
 	if (strlen(pcm->pcm_name)) {
-		link->name = kstrdup(pcm->pcm_name, GFP_KERNEL);
-		link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL);
+		link->name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL);
+		link->stream_name = devm_kstrdup(tplg->dev, pcm->pcm_name, GFP_KERNEL);
 		if (!link->name || !link->stream_name) {
 			ret = -ENOMEM;
 			goto err;
@@ -1958,7 +1873,7 @@ static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
 	link->id = le32_to_cpu(pcm->pcm_id);
 
 	if (strlen(pcm->dai_name)) {
-		link->cpus->dai_name = kstrdup(pcm->dai_name, GFP_KERNEL);
+		link->cpus->dai_name = devm_kstrdup(tplg->dev, pcm->dai_name, GFP_KERNEL);
 		if (!link->cpus->dai_name) {
 			ret = -ENOMEM;
 			goto err;
@@ -1996,10 +1911,6 @@ static int soc_tplg_fe_link_create(struct soc_tplg *tplg,
 
 	return 0;
 err:
-	kfree(link->name);
-	kfree(link->stream_name);
-	kfree(link->cpus->dai_name);
-	kfree(link);
 	return ret;
 }
 
@@ -2472,7 +2383,7 @@ static int soc_tplg_dai_config(struct soc_tplg *tplg,
 	if (d->playback) {
 		stream = &dai_drv->playback;
 		caps = &d->caps[SND_SOC_TPLG_STREAM_PLAYBACK];
-		ret = set_stream_info(stream, caps);
+		ret = set_stream_info(tplg, stream, caps);
 		if (ret < 0)
 			goto err;
 	}
@@ -2480,7 +2391,7 @@ static int soc_tplg_dai_config(struct soc_tplg *tplg,
 	if (d->capture) {
 		stream = &dai_drv->capture;
 		caps = &d->caps[SND_SOC_TPLG_STREAM_CAPTURE];
-		ret = set_stream_info(stream, caps);
+		ret = set_stream_info(tplg, stream, caps);
 		if (ret < 0)
 			goto err;
 	}
@@ -2500,8 +2411,6 @@ static int soc_tplg_dai_config(struct soc_tplg *tplg,
 	return 0;
 
 err:
-	kfree(dai_drv->playback.stream_name);
-	kfree(dai_drv->capture.stream_name);
 	return ret;
 }
 
-- 
2.25.1

[PATCH 5/6] ASoC: topology: Remove empty functions

[Amadeusz Sławiński]

From: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>

After changing memory management to resource managed one, some of the
functions became no ops, remove them as they are no longer needed.

Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
---
 sound/soc/soc-topology.c | 44 ----------------------------------------
 1 file changed, 44 deletions(-)

diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 6ef508f56a5f..4f632aeeeb5e 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -79,8 +79,6 @@ struct soc_tplg {
 
 static int soc_tplg_process_headers(struct soc_tplg *tplg);
 static void soc_tplg_complete(struct soc_tplg *tplg);
-static void soc_tplg_denum_remove_texts(struct soc_enum *se);
-static void soc_tplg_denum_remove_values(struct soc_enum *se);
 
 /* check we dont overflow the data for this control chunk */
 static int soc_tplg_check_elem_count(struct soc_tplg *tplg, size_t elem_size,
@@ -375,7 +373,6 @@ static void remove_enum(struct snd_soc_component *comp,
 	struct snd_soc_dobj *dobj, int pass)
 {
 	struct snd_card *card = comp->card->snd_card;
-	struct soc_enum *se = container_of(dobj, struct soc_enum, dobj);
 
 	if (pass != SOC_TPLG_PASS_MIXER)
 		return;
@@ -385,9 +382,6 @@ static void remove_enum(struct snd_soc_component *comp,
 
 	snd_ctl_remove(card, dobj->control.kcontrol);
 	list_del(&dobj->list);
-
-	soc_tplg_denum_remove_values(se);
-	soc_tplg_denum_remove_texts(se);
 }
 
 /* remove a byte kcontrol */
@@ -445,15 +439,9 @@ static void remove_widget(struct snd_soc_component *comp,
 		/* enumerated widget mixer */
 		for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
 			struct snd_kcontrol *kcontrol = w->kcontrols[i];
-			struct soc_enum *se =
-				(struct soc_enum *)kcontrol->private_value;
 
 			snd_ctl_remove(card, kcontrol);
 
-			/* free enum kcontrol's dvalues and dtexts */
-			soc_tplg_denum_remove_values(se);
-			soc_tplg_denum_remove_texts(se);
-
 		}
 	} else {
 		/* volume mixer or bytes controls */
@@ -703,11 +691,6 @@ static int soc_tplg_create_tlv(struct soc_tplg *tplg,
 	return 0;
 }
 
-static inline void soc_tplg_free_tlv(struct soc_tplg *tplg,
-	struct snd_kcontrol_new *kc)
-{
-}
-
 static int soc_tplg_dbytes_create(struct soc_tplg *tplg, unsigned int count,
 	size_t size)
 {
@@ -868,7 +851,6 @@ static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
 		if (err < 0) {
 			dev_err(tplg->dev, "ASoC: failed to init %s\n",
 				mc->hdr.name);
-			soc_tplg_free_tlv(tplg, &kc);
 			break;
 		}
 
@@ -878,7 +860,6 @@ static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
 		if (err < 0) {
 			dev_err(tplg->dev, "ASoC: failed to add %s\n",
 				mc->hdr.name);
-			soc_tplg_free_tlv(tplg, &kc);
 			break;
 		}
 
@@ -918,15 +899,9 @@ static int soc_tplg_denum_create_texts(struct soc_tplg *tplg, struct soc_enum *s
 	return 0;
 
 err:
-	se->items = i;
-	soc_tplg_denum_remove_texts(se);
 	return ret;
 }
 
-static inline void soc_tplg_denum_remove_texts(struct soc_enum *se)
-{
-}
-
 static int soc_tplg_denum_create_values(struct soc_tplg *tplg, struct soc_enum *se,
 					struct snd_soc_tplg_enum_control *ec)
 {
@@ -949,10 +924,6 @@ static int soc_tplg_denum_create_values(struct soc_tplg *tplg, struct soc_enum *
 	return 0;
 }
 
-static inline void soc_tplg_denum_remove_values(struct soc_enum *se)
-{
-}
-
 static int soc_tplg_denum_create(struct soc_tplg *tplg, unsigned int count,
 	size_t size)
 {
@@ -1322,10 +1293,6 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
 	return kc;
 
 err_sm:
-	for (; i >= 0; i--) {
-		soc_tplg_free_tlv(tplg, &kc[i]);
-	}
-
 	return NULL;
 }
 
@@ -1422,17 +1389,6 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
 	return kc;
 
 err_se:
-	for (; i >= 0; i--) {
-		/* free values and texts */
-		se = (struct soc_enum *)kc[i].private_value;
-
-		if (se) {
-			soc_tplg_denum_remove_values(se);
-			soc_tplg_denum_remove_texts(se);
-		}
-
-	}
-
 	return NULL;
 }
 
-- 
2.25.1

[PATCH 6/6] ASoC: topology: Simplify remove_widget function

[Amadeusz Sławiński]

From: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>

Now that enum and mixer kcontrols are freed by resource management
framework, removing kcontrol becomes one function call, so simplify code
in remove_widget.

Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
---
 sound/soc/soc-topology.c | 22 ++--------------------
 1 file changed, 2 insertions(+), 20 deletions(-)

diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 4f632aeeeb5e..07c60187e9ea 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -431,26 +431,8 @@ static void remove_widget(struct snd_soc_component *comp,
 	if (!w->kcontrols)
 		goto free_news;
 
-	/*
-	 * Dynamic Widgets either have 1..N enum kcontrols or mixers.
-	 * The enum may either have an array of values or strings.
-	 */
-	if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) {
-		/* enumerated widget mixer */
-		for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
-			struct snd_kcontrol *kcontrol = w->kcontrols[i];
-
-			snd_ctl_remove(card, kcontrol);
-
-		}
-	} else {
-		/* volume mixer or bytes controls */
-		for (i = 0; w->kcontrols != NULL && i < w->num_kcontrols; i++) {
-			struct snd_kcontrol *kcontrol = w->kcontrols[i];
-
-			snd_ctl_remove(card, kcontrol);
-		}
-	}
+	for (i = 0; w->kcontrols && i < w->num_kcontrols; i++)
+		snd_ctl_remove(card, w->kcontrols[i]);
 
 free_news:
 
-- 
2.25.1

Re: [PATCH v3 0/7] ASoC: topology: Change to resource managed memory

[Mark Brown]

On Fri, 30 Oct 2020 10:54:21 -0400, Amadeusz Sławiński wrote:
> Almost all other allocations in ASoC API are resource managed, the only
> exception is soc-topology.c.
> 
> This patchset clean ups few unnecessary functions in preparation for
> change and then changes to devm_ functions for allocation.
> 
> Amadeusz Sławiński (6):
>   ASoC: topology: Remove unused functions from topology API
>   ASoC: topology: Remove multistep topology loading
>   ASoC: topology: Unify all device references
>   ASoC: topology: Change allocations to resource managed
>   ASoC: topology: Remove empty functions
>   ASoC: topology: Simplify remove_widget function
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/6] ASoC: topology: Remove unused functions from topology API
      commit: 841fb1096713bdd85cb2484557623136e10041d2
[2/6] ASoC: topology: Remove multistep topology loading
      commit: a5b8f71c5477f4327c66a085d9714fe298510819
[3/6] ASoC: topology: Unify all device references
      commit: e59db12b8df3ab07dcfe3540ecdf782d4272f263
[4/6] ASoC: topology: Change allocations to resource managed
      commit: ff922622443767b27232eb01bae1d9a8d42df073
[5/6] ASoC: topology: Remove empty functions
      commit: 033df362ea3635179d1defed2230be69ed632c05
[6/6] ASoC: topology: Simplify remove_widget function
      commit: 8d456654839cd4fd10225ffa9c70c64784615f95

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark