* [PATCH 2/3] sound/pci ioremap/iounmap balancing
@ 2007-08-01 6:02 Scott Thompson
2007-08-01 10:38 ` Takashi Iwai
0 siblings, 1 reply; 3+ messages in thread
From: Scott Thompson @ 2007-08-01 6:02 UTC (permalink / raw)
To: kernel-janitors, linux-kernel, linux-sound
ioremap / iounmap balancing in sound/pci tree
Signed-off-by: Scott Thompson <postfail <at> hushmail.com>
---
diff --git a/sound/pci/mixart/mixart.c b/sound/pci/mixart/mixart.c
index ac007ce..871b09f 100644
--- a/sound/pci/mixart/mixart.c
+++ b/sound/pci/mixart/mixart.c
@@ -1319,6 +1319,13 @@ static int __devinit snd_mixart_probe(struct
pci_dev *pci,
pci_resource_len(pci, i));
}
+ if (!mgr->mem[0].virt || !mgr->mem[1].virt){
+ printk(KERN_ERR "unable to remap resource 0x%lx and/or 0x%lx\n",
+ mgr->mem[0].phys, mgr->mem[1].phys);
+ snd_mixart_free(mgr);
+ return -EBUSY;
+ }
+
if (request_irq(pci->irq, snd_mixart_interrupt, IRQF_SHARED,
CARD_NAME, mgr)) {
snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
diff --git a/sound/pci/rme32.c b/sound/pci/rme32.c
index 618653e..d62d32a 100644
--- a/sound/pci/rme32.c
+++ b/sound/pci/rme32.c
@@ -1373,6 +1373,7 @@ static int __devinit snd_rme32_create(struct
rme32 * rme32)
if (request_irq(pci->irq, snd_rme32_interrupt, IRQF_SHARED,
"RME32", rme32)) {
snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
+ iounmap(rme32->iobase);
return -EBUSY;
}
rme32->irq = pci->irq;
@@ -1382,6 +1383,7 @@ static int __devinit snd_rme32_create(struct
rme32 * rme32)
/* set up ALSA pcm device for S/PDIF */
if ((err = snd_pcm_new(rme32->card, "Digi32 IEC958", 0, 1, 1,
&rme32->spdif_pcm)) < 0) {
+ iounmap(rme32->iobase);
return err;
}
rme32->spdif_pcm->private_data = rme32;
@@ -1414,6 +1416,7 @@ static int __devinit snd_rme32_create(struct
rme32 * rme32)
if ((err = snd_pcm_new(rme32->card, "Digi32 ADAT", 1,
1, 1, &rme32->adat_pcm)) < 0)
{
+ iounmap(rme32->iobase);
return err;
}
rme32->adat_pcm->private_data = rme32;
@@ -1459,6 +1462,7 @@ static int __devinit snd_rme32_create(struct
rme32 * rme32)
/* init switch interface */
if ((err = snd_rme32_create_switches(rme32->card, rme32)) < 0) {
+ iounmap(rme32->iobase);
return err;
}
diff --git a/sound/pci/rme96.c b/sound/pci/rme96.c
index e3304b7..25af36c 100644
--- a/sound/pci/rme96.c
+++ b/sound/pci/rme96.c
@@ -1590,6 +1590,7 @@ snd_rme96_create(struct rme96 *rme96)
if (request_irq(pci->irq, snd_rme96_interrupt, IRQF_SHARED,
"RME96", rme96)) {
snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
+ iounmap(rme96->iobase);
return -EBUSY;
}
rme96->irq = pci->irq;
@@ -1601,6 +1602,7 @@ snd_rme96_create(struct rme96 *rme96)
if ((err = snd_pcm_new(rme96->card, "Digi96 IEC958", 0,
1, 1, &rme96->spdif_pcm)) < 0)
{
+ iounmap(rme96->iobase);
return err;
}
rme96->spdif_pcm->private_data = rme96;
@@ -1619,6 +1621,7 @@ snd_rme96_create(struct rme96 *rme96)
if ((err = snd_pcm_new(rme96->card, "Digi96 ADAT", 1,
1, 1, &rme96->adat_pcm)) < 0)
{
+ iounmap(rme96->iobase);
return err;
}
rme96->adat_pcm->private_data = rme96;
@@ -1671,6 +1674,7 @@ snd_rme96_create(struct rme96 *rme96)
/* init switch interface */
if ((err = snd_rme96_create_switches(rme96->card, rme96)) < 0) {
+ iounmap(rme96->iobase);
return err;
}
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index 3b3ef65..031285f 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -5049,6 +5049,7 @@ static int __devinit snd_hdsp_create(struct
snd_card *card,
if (request_irq(pci->irq, snd_hdsp_interrupt, IRQF_SHARED,
"hdsp", hdsp)) {
snd_printk(KERN_ERR "Hammerfall-DSP: unable to use IRQ %d\n",
pci->irq);
+ iounmap(hdsp->iobase);
return -EBUSY;
}
@@ -5057,8 +5058,10 @@ static int __devinit snd_hdsp_create(struct
snd_card *card,
hdsp->use_midi_tasklet = 1;
hdsp->dds_value = 0;
- if ((err = snd_hdsp_initialize_memory(hdsp)) < 0)
+ if ((err = snd_hdsp_initialize_memory(hdsp)) < 0) {
+ iounmap(hdsp->iobase);
return err;
+ }
if (!is_9652 && !is_9632) {
/* we wait 2 seconds to let freshly inserted cardbus cards do
their hardware init */
@@ -5078,8 +5081,10 @@ static int __devinit snd_hdsp_create(struct
snd_card *card,
#endif
/* no iobox connected, we defer initialization */
snd_printk(KERN_INFO "Hammerfall-DSP: card initialization
pending : waiting for firmware\n");
- if ((err = snd_hdsp_create_hwdep(card, hdsp)) < 0)
+ if ((err = snd_hdsp_create_hwdep(card, hdsp)) < 0) {
+ iounmap(hdsp->iobase);
return err;
+ }
return 0;
} else {
snd_printk(KERN_INFO "Hammerfall-DSP: Firmware already present,
initializing card.\n");
@@ -5090,8 +5095,10 @@ static int __devinit snd_hdsp_create(struct
snd_card *card,
}
}
- if ((err = snd_hdsp_enable_io(hdsp)) != 0)
+ if ((err = snd_hdsp_enable_io(hdsp)) != 0) {
+ iounmap(hdsp->iobase);
return err;
+ }
if (is_9652)
hdsp->io_type = H9652;
@@ -5099,16 +5106,20 @@ static int __devinit snd_hdsp_create(struct
snd_card *card,
if (is_9632)
hdsp->io_type = H9632;
- if ((err = snd_hdsp_create_hwdep(card, hdsp)) < 0)
+ if ((err = snd_hdsp_create_hwdep(card, hdsp)) < 0) {
+ iounmap(hdsp->iobase);
return err;
+ }
snd_hdsp_initialize_channels(hdsp);
snd_hdsp_initialize_midi_flush(hdsp);
hdsp->state |= HDSP_FirmwareLoaded;
- if ((err = snd_hdsp_create_alsa_devices(card, hdsp)) < 0)
+ if ((err = snd_hdsp_create_alsa_devices(card, hdsp)) < 0) {
+ iounmap(hdsp->iobase);
return err;
+ }
return 0;
}
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index 143185e..41fa677 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -4423,6 +4423,7 @@ static int __devinit snd_hdspm_create(struct
snd_card *card, struct hdspm * hdsp
if (request_irq(pci->irq, snd_hdspm_interrupt,
IRQF_SHARED, "hdspm", hdspm)) {
snd_printk(KERN_ERR "HDSPM: unable to use IRQ %d\n", pci->irq);
+ iounmap(hdspm->iobase);
return -EBUSY;
}
@@ -4439,6 +4440,7 @@ static int __devinit snd_hdspm_create(struct
snd_card *card, struct hdspm * hdsp
== NULL) {
snd_printk(KERN_ERR "HDSPM: unable to kmalloc Mixer memory of %d
Bytes\n",
(int)sizeof(struct hdspm_mixer));
+ iounmap(hdspm->iobase);
return err;
}
@@ -4447,8 +4449,10 @@ static int __devinit snd_hdspm_create(struct
snd_card *card, struct hdspm * hdsp
hdspm->qs_channels = MADI_QS_CHANNELS;
snd_printdd("create alsa devices.\n");
- if ((err = snd_hdspm_create_alsa_devices(card, hdspm)) < 0)
+ if ((err = snd_hdspm_create_alsa_devices(card, hdspm)) < 0) {
+ iounmap(hdspm->iobase);
return err;
+ }
snd_hdspm_initialize_midi_flush(hdspm);
diff --git a/sound/pci/rme9652/rme9652.c
b/sound/pci/rme9652/rme9652.c
index 2de2740..39a54b0 100644
--- a/sound/pci/rme9652/rme9652.c
+++ b/sound/pci/rme9652/rme9652.c
@@ -2499,6 +2499,7 @@ static int __devinit
snd_rme9652_create(struct snd_card *card,
if (request_irq(pci->irq, snd_rme9652_interrupt, IRQF_SHARED,
"rme9652", rme9652)) {
snd_printk(KERN_ERR "unable to request IRQ %d\n", pci->irq);
+ iounmap(rme9652->iobase);
return -EBUSY;
}
rme9652->irq = pci->irq;
@@ -2559,14 +2560,17 @@ static int __devinit
snd_rme9652_create(struct snd_card *card,
pci_set_master(rme9652->pci);
if ((err = snd_rme9652_initialize_memory(rme9652)) < 0) {
+ iounmap(rme9652->iobase);
return err;
}
if ((err = snd_rme9652_create_pcm(card, rme9652)) < 0) {
+ iounmap(rme9652->iobase);
return err;
}
if ((err = snd_rme9652_create_controls(card, rme9652)) < 0) {
+ iounmap(rme9652->iobase);
return err;
}
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^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH 2/3] sound/pci ioremap/iounmap balancing
2007-08-01 6:02 [PATCH 2/3] sound/pci ioremap/iounmap balancing Scott Thompson
@ 2007-08-01 10:38 ` Takashi Iwai
0 siblings, 0 replies; 3+ messages in thread
From: Takashi Iwai @ 2007-08-01 10:38 UTC (permalink / raw)
To: postfail; +Cc: kernel-janitors, linux-kernel, linux-sound
At Wed, 01 Aug 2007 02:02:56 -0400,
Scott Thompson wrote:
>
> ioremap / iounmap balancing in sound/pci tree
>
> Signed-off-by: Scott Thompson <postfail <at> hushmail.com>
> ---
> diff --git a/sound/pci/mixart/mixart.c b/sound/pci/mixart/mixart.c
> index ac007ce..871b09f 100644
> --- a/sound/pci/mixart/mixart.c
> +++ b/sound/pci/mixart/mixart.c
> @@ -1319,6 +1319,13 @@ static int __devinit snd_mixart_probe(struct
> pci_dev *pci,
> pci_resource_len(pci, i));
> }
>
> + if (!mgr->mem[0].virt || !mgr->mem[1].virt){
> + printk(KERN_ERR "unable to remap resource 0x%lx and/or 0x%lx\n",
> + mgr->mem[0].phys, mgr->mem[1].phys);
> + snd_mixart_free(mgr);
> + return -EBUSY;
> + }
> +
> if (request_irq(pci->irq, snd_mixart_interrupt, IRQF_SHARED,
> CARD_NAME, mgr)) {
> snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
This would be rater a lacking check of returned errors.
The other changes look incorrect. All these drivers use
card->private_free callback to release the resources even for the
error exit. Thus, you don't need iounmap in each place.
thanks,
Takashi
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH 2/3] sound/pci ioremap/iounmap balancing
@ 2007-08-01 13:25 Scott Thompson
0 siblings, 0 replies; 3+ messages in thread
From: Scott Thompson @ 2007-08-01 13:25 UTC (permalink / raw)
To: tiwai; +Cc: kernel-janitors, linux-kernel, linux-sound
On Wed, 01 Aug 2007 06:38:16 -0400 Takashi Iwai <tiwai@suse.de>
wrote:
>This would be rater a lacking check of returned errors.
>
>The other changes look incorrect. All these drivers use
>card->private_free callback to release the resources even for the
>error exit. Thus, you don't need iounmap in each place.
>
>
>thanks,
>
>Takashi
Missed the callback on the audit, will repost this patch
(sound/pci) with just the unchecked returns...
---------------------------------------
Scott Thompson / postfail@hushmail.com
---------------------------------------
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^ permalink raw reply [flat|nested] 3+ messages in thread
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