[PATCH 00/14] ALSA: Use auto-cleanup for firmware loading

[PATCH 00/14] ALSA: Use auto-cleanup for firmware loading

[Takashi Iwai]

This is a series of trivial patches that replace the manual
release_firmware() calls with the auto-cleanup via __free(firmware).

It doesn't cover all drivers but just a few as a start.


Takashi

===

Takashi Iwai (14):
  ALSA: 6fire: Use auto-cleanup for firmware loading
  ALSA: hda: ca0132: Use auto-cleanup for firmware loading
  ALSA: hda: intel: Use auto-cleanup for firmware loading
  ALSA: msnd: Use auto-cleanup for firmware loading
  ALSA: hda: cs35l41: Use auto-cleanup for firmware loading
  ALSA: hda: cs35l56: Use auto-cleanup for firmware loading
  ALSA: sscape: Use auto-cleanup for firmware loading
  ALSA: wavefront: Use auto-cleanup for firmware loading
  ALSA: asihpi: Use auto-cleanup for firmware loading
  ALSA: cs46xx: Use auto-cleanup for firmware loading
  ALSA: korg1212: Use auto-cleanup for firmware loading
  ALSA: mixart: Use auto-cleanup for firmware loading
  ALSA: pcxhr: Use auto-cleanup for firmware loading
  ALSA: sh: Use auto-cleanup for firmware loading

 sound/hda/codecs/ca0132.c                  | 12 ++------
 sound/hda/codecs/side-codecs/cs35l41_hda.c | 33 ++++++++------------
 sound/hda/codecs/side-codecs/cs35l56_hda.c | 35 ++++++----------------
 sound/hda/controllers/intel.c              |  3 +-
 sound/isa/msnd/msnd_pinnacle.c             | 18 ++++-------
 sound/isa/sscape.c                         |  8 ++---
 sound/isa/wavefront/wavefront_fx.c         | 23 +++++---------
 sound/isa/wavefront/wavefront_synth.c      |  4 +--
 sound/pci/asihpi/hpidspcd.c                | 18 +++++------
 sound/pci/cs46xx/cs46xx_lib.c              | 30 +++++++------------
 sound/pci/korg1212/korg1212.c              |  8 ++---
 sound/pci/mixart/mixart_hwdep.c            |  4 +--
 sound/pci/pcxhr/pcxhr_hwdep.c              |  3 +-
 sound/sh/aica.c                            |  4 +--
 sound/usb/6fire/firmware.c                 | 24 +++------------
 15 files changed, 69 insertions(+), 158 deletions(-)

-- 
2.55.0

[PATCH 01/14] ALSA: 6fire: Use auto-cleanup for firmware loading

[Takashi Iwai]

Clean up the code for managing the firmware loading in the 6fire
driver with __free(firmware) and __free(kfree), so that the loaded
firmware and the name string are cleaned up automatically.

Only the code refactoring, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/6fire/firmware.c | 24 ++++--------------------
 1 file changed, 4 insertions(+), 20 deletions(-)

diff --git a/sound/usb/6fire/firmware.c b/sound/usb/6fire/firmware.c
index 123c1c6539b8..d9dd8f44b047 100644
--- a/sound/usb/6fire/firmware.c
+++ b/sound/usb/6fire/firmware.c
@@ -194,23 +194,20 @@ static int usb6fire_fw_ezusb_upload(
 	int ret;
 	u8 data;
 	struct usb_device *device = interface_to_usbdev(intf);
-	const struct firmware *fw = NULL;
-	struct ihex_record *rec = kmalloc_obj(struct ihex_record);
+	struct ihex_record *rec __free(kfree) = kmalloc_obj(struct ihex_record);
 
 	if (!rec)
 		return -ENOMEM;
 
+	const struct firmware *fw __free(firmware) = NULL;
 	ret = request_firmware(&fw, fwname, &device->dev);
 	if (ret < 0) {
-		kfree(rec);
 		dev_err(&intf->dev,
 			"error requesting ezusb firmware %s.\n", fwname);
 		return ret;
 	}
 	ret = usb6fire_fw_ihex_init(fw, rec);
 	if (ret < 0) {
-		kfree(rec);
-		release_firmware(fw);
 		dev_err(&intf->dev,
 			"error validating ezusb firmware %s.\n", fwname);
 		return ret;
@@ -219,8 +216,6 @@ static int usb6fire_fw_ezusb_upload(
 	data = 0x01; /* stop ezusb cpu */
 	ret = usb6fire_fw_ezusb_write(device, 0xa0, 0xe600, &data, 1);
 	if (ret) {
-		kfree(rec);
-		release_firmware(fw);
 		dev_err(&intf->dev,
 			"unable to upload ezusb firmware %s: begin message.\n",
 			fwname);
@@ -231,8 +226,6 @@ static int usb6fire_fw_ezusb_upload(
 		ret = usb6fire_fw_ezusb_write(device, 0xa0, rec->address,
 				rec->data, rec->len);
 		if (ret) {
-			kfree(rec);
-			release_firmware(fw);
 			dev_err(&intf->dev,
 				"unable to upload ezusb firmware %s: data urb.\n",
 				fwname);
@@ -240,8 +233,6 @@ static int usb6fire_fw_ezusb_upload(
 		}
 	}
 
-	release_firmware(fw);
-	kfree(rec);
 	if (postdata) { /* write data after firmware has been uploaded */
 		ret = usb6fire_fw_ezusb_write(device, 0xa0, postaddr,
 				postdata, postlen);
@@ -270,19 +261,18 @@ static int usb6fire_fw_fpga_upload(
 	int ret;
 	int i;
 	struct usb_device *device = interface_to_usbdev(intf);
-	u8 *buffer = kmalloc(FPGA_BUFSIZE, GFP_KERNEL);
+	u8 *buffer __free(kfree) = kmalloc(FPGA_BUFSIZE, GFP_KERNEL);
 	const char *c;
 	const char *end;
-	const struct firmware *fw;
 
 	if (!buffer)
 		return -ENOMEM;
 
+	const struct firmware *fw __free(firmware) = NULL;
 	ret = request_firmware(&fw, fwname, &device->dev);
 	if (ret < 0) {
 		dev_err(&intf->dev, "unable to get fpga firmware %s.\n",
 				fwname);
-		kfree(buffer);
 		return -EIO;
 	}
 
@@ -291,8 +281,6 @@ static int usb6fire_fw_fpga_upload(
 
 	ret = usb6fire_fw_ezusb_write(device, 8, 0, NULL, 0);
 	if (ret) {
-		kfree(buffer);
-		release_firmware(fw);
 		dev_err(&intf->dev,
 			"unable to upload fpga firmware: begin urb.\n");
 		return ret;
@@ -304,15 +292,11 @@ static int usb6fire_fw_fpga_upload(
 
 		ret = usb6fire_fw_fpga_write(device, buffer, i);
 		if (ret < 0) {
-			release_firmware(fw);
-			kfree(buffer);
 			dev_err(&intf->dev,
 				"unable to upload fpga firmware: fw urb.\n");
 			return ret;
 		}
 	}
-	release_firmware(fw);
-	kfree(buffer);
 
 	ret = usb6fire_fw_ezusb_write(device, 9, 0, NULL, 0);
 	if (ret) {
-- 
2.55.0

[PATCH 02/14] ALSA: hda: ca0132: Use auto-cleanup for firmware loading

[Takashi Iwai]

Simplify the code to manage the firmware loading with __free(firmware)
auto-cleanup.

Only the code refactoring, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/hda/codecs/ca0132.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/sound/hda/codecs/ca0132.c b/sound/hda/codecs/ca0132.c
index 3fe11983d6ca..61c9fb42b1de 100644
--- a/sound/hda/codecs/ca0132.c
+++ b/sound/hda/codecs/ca0132.c
@@ -8530,10 +8530,9 @@ static void ca0132_set_dsp_msr(struct hda_codec *codec, bool is96k)
 
 static bool ca0132_download_dsp_images(struct hda_codec *codec)
 {
-	bool dsp_loaded = false;
 	struct ca0132_spec *spec = codec->spec;
 	const struct dsp_image_seg *dsp_os_image;
-	const struct firmware *fw_entry = NULL;
+	const struct firmware *fw_entry __free(firmware) = NULL;
 	/*
 	 * Alternate firmwares for different variants. The Recon3Di apparently
 	 * can use the default firmware, but I'll leave the option in case
@@ -8573,15 +8572,10 @@ static bool ca0132_download_dsp_images(struct hda_codec *codec)
 	dsp_os_image = (struct dsp_image_seg *)(fw_entry->data);
 	if (dspload_image(codec, dsp_os_image, 0, 0, true, 0)) {
 		codec_err(codec, "ca0132 DSP load image failed\n");
-		goto exit_download;
+		return false;
 	}
 
-	dsp_loaded = dspload_wait_loaded(codec);
-
-exit_download:
-	release_firmware(fw_entry);
-
-	return dsp_loaded;
+	return dspload_wait_loaded(codec);
 }
 
 static void ca0132_download_dsp(struct hda_codec *codec)
-- 
2.55.0

[PATCH 03/14] ALSA: hda: intel: Use auto-cleanup for firmware loading

[Takashi Iwai]

Simplify the code to manage the firmware loading with __free(firmware)
auto-cleanup.

Only the code refactoring, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/hda/controllers/intel.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/hda/controllers/intel.c b/sound/hda/controllers/intel.c
index 192f5c044b7a..dbcdaf12a4bf 100644
--- a/sound/hda/controllers/intel.c
+++ b/sound/hda/controllers/intel.c
@@ -2387,7 +2387,7 @@ static int azx_probe_continue(struct azx *chip)
 
 #ifdef CONFIG_SND_HDA_PATCH_LOADER
 	if (patch[dev] && *patch[dev]) {
-		const struct firmware *fw = NULL;
+		const struct firmware *fw __free(firmware) = NULL;
 
 		dev_info(&pci->dev, "Applying patch firmware '%s'\n",
 			 patch[dev]);
@@ -2396,7 +2396,6 @@ static int azx_probe_continue(struct azx *chip)
 				"Cannot load firmware, continue without patching\n");
 		} else {
 			err = snd_hda_load_patch(&chip->bus, fw->size, fw->data);
-			release_firmware(fw);
 			if (err < 0)
 				goto out_free;
 		}
-- 
2.55.0

[PATCH 04/14] ALSA: msnd: Use auto-cleanup for firmware loading

[Takashi Iwai]

Simplify the code to manage the firmware loading with __free(firmware)
auto-cleanup.

Only the code refactoring, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/isa/msnd/msnd_pinnacle.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/sound/isa/msnd/msnd_pinnacle.c b/sound/isa/msnd/msnd_pinnacle.c
index 0d5f4461a7bc..eac6e22362cc 100644
--- a/sound/isa/msnd/msnd_pinnacle.c
+++ b/sound/isa/msnd/msnd_pinnacle.c
@@ -367,7 +367,8 @@ static int snd_msnd_init_sma(struct snd_msnd *chip)
 static int upload_dsp_code(struct snd_card *card)
 {
 	struct snd_msnd *chip = card->private_data;
-	const struct firmware *init_fw = NULL, *perm_fw = NULL;
+	const struct firmware *init_fw __free(firmware) = NULL;
+	const struct firmware *perm_fw __free(firmware) = NULL;
 	int err;
 
 	outb(HPBLKSEL_0, chip->io + HP_BLKS);
@@ -375,28 +376,21 @@ static int upload_dsp_code(struct snd_card *card)
 	err = request_firmware(&init_fw, INITCODEFILE, card->dev);
 	if (err < 0) {
 		dev_err(card->dev, LOGNAME ": Error loading " INITCODEFILE);
-		goto cleanup1;
+		return err;
 	}
 	err = request_firmware(&perm_fw, PERMCODEFILE, card->dev);
 	if (err < 0) {
 		dev_err(card->dev, LOGNAME ": Error loading " PERMCODEFILE);
-		goto cleanup;
+		return err;
 	}
 
 	memcpy_toio(chip->mappedbase, perm_fw->data, perm_fw->size);
 	if (snd_msnd_upload_host(chip, init_fw->data, init_fw->size) < 0) {
 		dev_warn(card->dev, LOGNAME ": Error uploading to DSP\n");
-		err = -ENODEV;
-		goto cleanup;
+		return -ENODEV;
 	}
 	dev_info(card->dev, LOGNAME ": DSP firmware uploaded\n");
-	err = 0;
-
-cleanup:
-	release_firmware(perm_fw);
-cleanup1:
-	release_firmware(init_fw);
-	return err;
+	return 0;
 }
 
 #ifdef MSND_CLASSIC
-- 
2.55.0

[PATCH 05/14] ALSA: hda: cs35l41: Use auto-cleanup for firmware loading

[Takashi Iwai]

Simplify the code to manage the firmware loading with auto-cleanup
with __free(firmware).  A NULL clear is added at
cs35l41_request_firmware_file() for avoiding the double-free.

Note that the driver still keeps a few manual firmware releases
because it retries with different firmware files when one of firmware
pairs fails.

Only the code refactoring, no functional changes.

Cc: patches@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/hda/codecs/side-codecs/cs35l41_hda.c | 33 ++++++++--------------
 1 file changed, 12 insertions(+), 21 deletions(-)

diff --git a/sound/hda/codecs/side-codecs/cs35l41_hda.c b/sound/hda/codecs/side-codecs/cs35l41_hda.c
index 64a5bd895fd1..41a13456775d 100644
--- a/sound/hda/codecs/side-codecs/cs35l41_hda.c
+++ b/sound/hda/codecs/side-codecs/cs35l41_hda.c
@@ -170,6 +170,7 @@ static int cs35l41_request_firmware_file(struct cs35l41_hda *cs35l41,
 	char *s, c;
 	int ret = 0;
 
+	*firmware = NULL;
 	if (spkid > -1 && ssid && amp_name)
 		*filename = kasprintf(GFP_KERNEL, "cirrus/%s-%s-%s-%s-spkid%d-%s.%s", CS35L41_PART,
 				      dsp_name, cs35l41_hda_fw_ids[cs35l41->firmware_type],
@@ -528,8 +529,8 @@ static int cs35l41_read_tuning_params(struct cs35l41_hda *cs35l41, const struct
 
 static int cs35l41_load_tuning_params(struct cs35l41_hda *cs35l41, char *tuning_filename)
 {
-	const struct firmware *tuning_param_file = NULL;
-	char *tuning_param_filename = NULL;
+	const struct firmware *tuning_param_file __free(firmware) = NULL;
+	char *tuning_param_filename __free(kfree) = NULL;
 	int ret;
 
 	ret = cs35l41_request_tuning_param_file(cs35l41, tuning_filename, &tuning_param_file,
@@ -548,19 +549,16 @@ static int cs35l41_load_tuning_params(struct cs35l41_hda *cs35l41, char *tuning_
 		cs35l41_set_default_tuning_params(cs35l41);
 	}
 
-	release_firmware(tuning_param_file);
-	kfree(tuning_param_filename);
-
 	return ret;
 }
 
 static int cs35l41_init_dsp(struct cs35l41_hda *cs35l41)
 {
-	const struct firmware *coeff_firmware = NULL;
-	const struct firmware *wmfw_firmware = NULL;
+	const struct firmware *coeff_firmware __free(firmware) = NULL;
+	const struct firmware *wmfw_firmware __free(firmware) = NULL;
 	struct cs_dsp *dsp = &cs35l41->cs_dsp;
-	char *coeff_filename = NULL;
-	char *wmfw_filename = NULL;
+	char *coeff_filename __free(kfree) = NULL;
+	char *wmfw_filename __free(kfree) = NULL;
 	int ret;
 
 	if (!cs35l41->halo_initialized) {
@@ -592,20 +590,13 @@ static int cs35l41_init_dsp(struct cs35l41_hda *cs35l41)
 
 	ret = cs_dsp_power_up(dsp, wmfw_firmware, wmfw_filename, coeff_firmware, coeff_filename,
 			      cs35l41_hda_fw_ids[cs35l41->firmware_type]);
-	if (ret)
-		goto err;
+	if (ret) {
+		cs35l41_set_default_tuning_params(cs35l41);
+		return ret;
+	}
 
 	cs35l41_hda_apply_calibration(cs35l41);
-
-err:
-	if (ret)
-		cs35l41_set_default_tuning_params(cs35l41);
-	release_firmware(wmfw_firmware);
-	release_firmware(coeff_firmware);
-	kfree(wmfw_filename);
-	kfree(coeff_filename);
-
-	return ret;
+	return 0;
 }
 
 static void cs35l41_shutdown_dsp(struct cs35l41_hda *cs35l41)
-- 
2.55.0

[PATCH 06/14] ALSA: hda: cs35l56: Use auto-cleanup for firmware loading

[Takashi Iwai]

Simplify the code to manage the firmware loading with auto-cleanup.
By the use of __free(firmware), we can replace the manual mutex locks
with guard() gracefully, too.

Only the code refactoring, no functional changes.

Cc: patches@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/hda/codecs/side-codecs/cs35l56_hda.c | 35 ++++++----------------
 1 file changed, 9 insertions(+), 26 deletions(-)

diff --git a/sound/hda/codecs/side-codecs/cs35l56_hda.c b/sound/hda/codecs/side-codecs/cs35l56_hda.c
index 78c2cf387a00..bc207ab5b020 100644
--- a/sound/hda/codecs/side-codecs/cs35l56_hda.c
+++ b/sound/hda/codecs/side-codecs/cs35l56_hda.c
@@ -527,18 +527,6 @@ static void cs35l56_hda_request_firmware_files(struct cs35l56_hda *cs35l56,
 						  base_name, NULL, NULL, "bin");
 }
 
-static void cs35l56_hda_release_firmware_files(const struct firmware *wmfw_firmware,
-					       char *wmfw_filename,
-					       const struct firmware *coeff_firmware,
-					       char *coeff_filename)
-{
-	release_firmware(wmfw_firmware);
-	kfree(wmfw_filename);
-
-	release_firmware(coeff_firmware);
-	kfree(coeff_filename);
-}
-
 static int cs35l56_hda_apply_calibration(struct cs35l56_hda *cs35l56)
 {
 	int ret;
@@ -561,10 +549,10 @@ static int cs35l56_hda_apply_calibration(struct cs35l56_hda *cs35l56)
 
 static void cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56)
 {
-	const struct firmware *coeff_firmware = NULL;
-	const struct firmware *wmfw_firmware = NULL;
-	char *coeff_filename = NULL;
-	char *wmfw_filename = NULL;
+	const struct firmware *coeff_firmware __free(firmware) = NULL;
+	const struct firmware *wmfw_firmware __free(firmware) = NULL;
+	char *coeff_filename __free(kfree) = NULL;
+	char *wmfw_filename __free(kfree) = NULL;
 	unsigned int preloaded_fw_ver;
 	bool firmware_missing;
 	int ret;
@@ -606,14 +594,14 @@ static void cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56)
 	if (firmware_missing) {
 		if (!wmfw_firmware) {
 			dev_err(cs35l56->base.dev, ".%s file required but not found\n", "wmfw");
-			goto err_fw_release;
+			return;
 		} else if (!coeff_firmware) {
 			dev_err(cs35l56->base.dev, ".%s file required but not found\n", "bin");
-			goto err_fw_release;
+			return;
 		}
 	}
 
-	mutex_lock(&cs35l56->base.irq_lock);
+	guard(mutex)(&cs35l56->base.irq_lock);
 
 	/*
 	 * If the firmware hasn't been patched it must be shutdown before
@@ -624,14 +612,14 @@ static void cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56)
 	if (firmware_missing && (wmfw_firmware || coeff_firmware)) {
 		ret = cs35l56_firmware_shutdown(&cs35l56->base);
 		if (ret)
-			goto err;
+			return;
 	}
 
 	ret = cs_dsp_power_up(&cs35l56->cs_dsp, wmfw_firmware, wmfw_filename,
 			      coeff_firmware, coeff_filename, "misc");
 	if (ret) {
 		dev_dbg(cs35l56->base.dev, "%s: cs_dsp_power_up ret %d\n", __func__, ret);
-		goto err;
+		return;
 	}
 
 	if (wmfw_filename)
@@ -679,11 +667,6 @@ static void cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56)
 err_powered_up:
 	if (!cs35l56->base.fw_patched)
 		cs_dsp_power_down(&cs35l56->cs_dsp);
-err:
-	mutex_unlock(&cs35l56->base.irq_lock);
-err_fw_release:
-	cs35l56_hda_release_firmware_files(wmfw_firmware, wmfw_filename,
-					   coeff_firmware, coeff_filename);
 }
 
 static void cs35l56_hda_dsp_work(struct work_struct *work)
-- 
2.55.0

[PATCH 07/14] ALSA: sscape: Use auto-cleanup for firmware loading

[Takashi Iwai]

Simplify the code to manage the firmware loading with __free(firmware)
auto-cleanup.

Only the code refactoring, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/isa/sscape.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/sound/isa/sscape.c b/sound/isa/sscape.c
index ce8a59650e38..9b615b588cdf 100644
--- a/sound/isa/sscape.c
+++ b/sound/isa/sscape.c
@@ -526,7 +526,7 @@ static int upload_dma_data(struct soundscape *s, const unsigned char *data,
 static int sscape_upload_bootblock(struct snd_card *card)
 {
 	struct soundscape *sscape = get_card_soundscape(card);
-	const struct firmware *init_fw = NULL;
+	const struct firmware *init_fw __free(firmware) = NULL;
 	int data = 0;
 	int ret;
 
@@ -537,8 +537,6 @@ static int sscape_upload_bootblock(struct snd_card *card)
 	}
 	ret = upload_dma_data(sscape, init_fw->data, init_fw->size);
 
-	release_firmware(init_fw);
-
 	guard(spinlock_irqsave)(&sscape->lock);
 	if (ret == 0)
 		data = host_read_ctrl_unsafe(sscape->io_base, 100);
@@ -562,7 +560,7 @@ static int sscape_upload_bootblock(struct snd_card *card)
 static int sscape_upload_microcode(struct snd_card *card, int version)
 {
 	struct soundscape *sscape = get_card_soundscape(card);
-	const struct firmware *init_fw = NULL;
+	const struct firmware *init_fw __free(firmware) = NULL;
 	char name[14];
 	int err;
 
@@ -579,8 +577,6 @@ static int sscape_upload_microcode(struct snd_card *card, int version)
 		dev_info(card->dev, "sscape: MIDI firmware loaded %zu KBs\n",
 			 init_fw->size >> 10);
 
-	release_firmware(init_fw);
-
 	return err;
 }
 
-- 
2.55.0

[PATCH 08/14] ALSA: wavefront: Use auto-cleanup for firmware loading

[Takashi Iwai]

Simplify the code to manage the firmware loading with __free(firmware)
auto-cleanup.

Only the code refactoring, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/isa/wavefront/wavefront_fx.c    | 23 +++++++----------------
 sound/isa/wavefront/wavefront_synth.c |  4 +---
 2 files changed, 8 insertions(+), 19 deletions(-)

diff --git a/sound/isa/wavefront/wavefront_fx.c b/sound/isa/wavefront/wavefront_fx.c
index beca35ce04f3..6d95ea338ea9 100644
--- a/sound/isa/wavefront/wavefront_fx.c
+++ b/sound/isa/wavefront/wavefront_fx.c
@@ -232,41 +232,32 @@ snd_wavefront_fx_start (snd_wavefront_t *dev)
 {
 	unsigned int i;
 	int err;
-	const struct firmware *firmware = NULL;
+	const struct firmware *firmware __free(firmware) = NULL;
 
 	if (dev->fx_initialized)
 		return 0;
 
 	err = request_firmware(&firmware, "yamaha/yss225_registers.bin",
 			       dev->card->dev);
-	if (err < 0) {
-		err = -1;
-		goto out;
-	}
+	if (err < 0)
+		return -1;
 
 	for (i = 0; i + 1 < firmware->size; i += 2) {
 		if (firmware->data[i] >= 8 && firmware->data[i] < 16) {
 			outb(firmware->data[i + 1],
 			     dev->base + firmware->data[i]);
 		} else if (firmware->data[i] == WAIT_IDLE) {
-			if (!wavefront_fx_idle(dev)) {
-				err = -1;
-				goto out;
-			}
+			if (!wavefront_fx_idle(dev))
+				return -1;
 		} else {
 			dev_err(dev->card->dev,
 				"invalid address in register data\n");
-			err = -1;
-			goto out;
+			return -1;
 		}
 	}
 
 	dev->fx_initialized = 1;
-	err = 0;
-
-out:
-	release_firmware(firmware);
-	return err;
+	return 0;
 }
 
 MODULE_FIRMWARE("yamaha/yss225_registers.bin");
diff --git a/sound/isa/wavefront/wavefront_synth.c b/sound/isa/wavefront/wavefront_synth.c
index 2f57a6795d22..0c8f5cf26455 100644
--- a/sound/isa/wavefront/wavefront_synth.c
+++ b/sound/isa/wavefront/wavefront_synth.c
@@ -2053,7 +2053,7 @@ wavefront_download_firmware (snd_wavefront_t *dev, char *path)
 	const unsigned char *buf;
 	int len, err;
 	int section_cnt_downloaded = 0;
-	const struct firmware *firmware;
+	const struct firmware *firmware __free(firmware) = NULL;
 
 	err = request_firmware(&firmware, path, dev->card->dev);
 	if (err < 0) {
@@ -2108,11 +2108,9 @@ wavefront_download_firmware (snd_wavefront_t *dev, char *path)
 		section_cnt_downloaded++;
 	}
 
-	release_firmware(firmware);
 	return 0;
 
  failure:
-	release_firmware(firmware);
 	dev_err(dev->card->dev, "firmware download failed!!!\n");
 	return 1;
 }
-- 
2.55.0

[PATCH 09/14] ALSA: asihpi: Use auto-cleanup for firmware loading

[Takashi Iwai]

Simplify the code to manage the firmware loading with __free(firmware)
auto-cleanup.

Only the code refactoring, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/asihpi/hpidspcd.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/sound/pci/asihpi/hpidspcd.c b/sound/pci/asihpi/hpidspcd.c
index b1b5a131f626..6d2c27e47d07 100644
--- a/sound/pci/asihpi/hpidspcd.c
+++ b/sound/pci/asihpi/hpidspcd.c
@@ -23,7 +23,7 @@ struct dsp_code_private {
 short hpi_dsp_code_open(u32 adapter, void *os_data, struct dsp_code *dsp_code,
 	u32 *os_error_code)
 {
-	const struct firmware *firmware;
+	const struct firmware *firmware __free(firmware) = NULL;
 	struct pci_dev *dev = os_data;
 	struct code_header header;
 	char fw_name[20];
@@ -37,11 +37,11 @@ short hpi_dsp_code_open(u32 adapter, void *os_data, struct dsp_code *dsp_code,
 	if (err || !firmware) {
 		dev_err(&dev->dev, "%d, request_firmware failed for %s\n",
 			err, fw_name);
-		goto error1;
+		goto error;
 	}
 	if (firmware->size < sizeof(header)) {
 		dev_err(&dev->dev, "Header size too small %s\n", fw_name);
-		goto error2;
+		goto error;
 	}
 	memcpy(&header, firmware->data, sizeof(header));
 
@@ -51,7 +51,7 @@ short hpi_dsp_code_open(u32 adapter, void *os_data, struct dsp_code *dsp_code,
 		dev_err(&dev->dev,
 			"Invalid firmware header size %d != file %zd\n",
 			header.size, firmware->size);
-		goto error2;
+		goto error;
 	}
 
 	if (HPI_VER_MAJOR(header.version) != HPI_VER_MAJOR(HPI_VER)) {
@@ -59,7 +59,7 @@ short hpi_dsp_code_open(u32 adapter, void *os_data, struct dsp_code *dsp_code,
 		dev_err(&dev->dev,
 			"Incompatible firmware version DSP image %X != Driver %X\n",
 			header.version, HPI_VER);
-		goto error2;
+		goto error;
 	}
 
 	if (header.version != HPI_VER) {
@@ -72,19 +72,17 @@ short hpi_dsp_code_open(u32 adapter, void *os_data, struct dsp_code *dsp_code,
 	dsp_code->pvt = kmalloc_obj(*dsp_code->pvt);
 	if (!dsp_code->pvt) {
 		err_ret = HPI_ERROR_MEMORY_ALLOC;
-		goto error2;
+		goto error;
 	}
 
 	dsp_code->pvt->dev = dev;
-	dsp_code->pvt->firmware = firmware;
+	dsp_code->pvt->firmware = no_free_ptr(firmware);
 	dsp_code->header = header;
 	dsp_code->block_length = header.size / sizeof(u32);
 	dsp_code->word_count = sizeof(header) / sizeof(u32);
 	return 0;
 
-error2:
-	release_firmware(firmware);
-error1:
+error:
 	dsp_code->block_length = 0;
 	return err_ret;
 }
-- 
2.55.0

[PATCH 10/14] ALSA: cs46xx: Use auto-cleanup for firmware loading

[Takashi Iwai]

Simplify the code to manage the firmware loading with __free(firmware)
auto-cleanup.

Only the code refactoring, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/cs46xx/cs46xx_lib.c | 30 ++++++++++--------------------
 1 file changed, 10 insertions(+), 20 deletions(-)

diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c
index 1c11023184ac..19a6927c079d 100644
--- a/sound/pci/cs46xx/cs46xx_lib.c
+++ b/sound/pci/cs46xx/cs46xx_lib.c
@@ -387,7 +387,7 @@ static int load_firmware(struct snd_cs46xx *chip,
 	unsigned int nums, fwlen, fwsize;
 	const __le32 *fwdat;
 	struct dsp_module_desc *module = NULL;
-	const struct firmware *fw;
+	const struct firmware *fw __free(firmware) = NULL;
 	char fw_path[32];
 
 	sprintf(fw_path, "cs46xx/%s", fw_name);
@@ -395,10 +395,8 @@ static int load_firmware(struct snd_cs46xx *chip,
 	if (err < 0)
 		return err;
 	fwsize = fw->size / 4;
-	if (fwsize < 2) {
-		err = -EINVAL;
-		goto error;
-	}
+	if (fwsize < 2)
+		return -EINVAL;
 
 	err = -ENOMEM;
 	module = kzalloc_obj(*module);
@@ -454,14 +452,12 @@ static int load_firmware(struct snd_cs46xx *chip,
 	}
 
 	*module_ret = module;
-	release_firmware(fw);
 	return 0;
 
  error_inval:
 	err = -EINVAL;
  error:
 	free_module_desc(module);
-	release_firmware(fw);
 	return err;
 }
 
@@ -500,22 +496,18 @@ MODULE_FIRMWARE("cs46xx/ba1");
 
 static int load_firmware(struct snd_cs46xx *chip)
 {
-	const struct firmware *fw;
+	const struct firmware *fw __free(firmware) = NULL;
 	int i, size, err;
 
 	err = request_firmware(&fw, "cs46xx/ba1", &chip->pci->dev);
 	if (err < 0)
 		return err;
-	if (fw->size != sizeof(*chip->ba1)) {
-		err = -EINVAL;
-		goto error;
-	}
+	if (fw->size != sizeof(*chip->ba1))
+		return -EINVAL;
 
 	chip->ba1 = vmalloc(sizeof(*chip->ba1));
-	if (!chip->ba1) {
-		err = -ENOMEM;
-		goto error;
-	}
+	if (!chip->ba1)
+		return -ENOMEM;
 
 	memcpy_le32(chip->ba1, fw->data, sizeof(*chip->ba1));
 
@@ -524,11 +516,9 @@ static int load_firmware(struct snd_cs46xx *chip)
 	for (i = 0; i < BA1_MEMORY_COUNT; i++)
 		size += chip->ba1->memory[i].size;
 	if (size > BA1_DWORD_SIZE * 4)
-		err = -EINVAL;
+		return -EINVAL;
 
- error:
-	release_firmware(fw);
-	return err;
+	return 0;
 }
 
 static __maybe_unused int snd_cs46xx_download_image(struct snd_cs46xx *chip)
-- 
2.55.0

[PATCH 11/14] ALSA: korg1212: Use auto-cleanup for firmware loading

[Takashi Iwai]

Simplify the code to manage the firmware loading with __free(firmware)
auto-cleanup.

Only the code refactoring, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/korg1212/korg1212.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/sound/pci/korg1212/korg1212.c b/sound/pci/korg1212/korg1212.c
index d16acf83668a..f4d8402f835f 100644
--- a/sound/pci/korg1212/korg1212.c
+++ b/sound/pci/korg1212/korg1212.c
@@ -1980,7 +1980,7 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci)
 	__maybe_unused unsigned ioport_size;
 	__maybe_unused unsigned iomem2_size;
 	struct snd_korg1212 *korg1212 = card->private_data;
-	const struct firmware *dsp_code;
+	const struct firmware *dsp_code __free(firmware) = NULL;
 
 	err = pcim_enable_device(pci);
 	if (err < 0)
@@ -2147,10 +2147,8 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci)
 
 	korg1212->dma_dsp = snd_devm_alloc_pages(&pci->dev, SNDRV_DMA_TYPE_DEV,
 						 dsp_code->size);
-	if (!korg1212->dma_dsp) {
-		release_firmware(dsp_code);
+	if (!korg1212->dma_dsp)
 		return -ENOMEM;
-	}
 
         K1212_DEBUG_PRINTK("K1212_DEBUG: DSP Code area = 0x%p (0x%08x) %d bytes [%s]\n",
 		   korg1212->dma_dsp->area, korg1212->dma_dsp->addr, dsp_code->size,
@@ -2158,8 +2156,6 @@ static int snd_korg1212_create(struct snd_card *card, struct pci_dev *pci)
 
 	memcpy(korg1212->dma_dsp->area, dsp_code->data, dsp_code->size);
 
-	release_firmware(dsp_code);
-
 	rc = snd_korg1212_Send1212Command(korg1212, K1212_DB_RebootCard, 0, 0, 0, 0);
 
 	if (rc)
-- 
2.55.0

[PATCH 12/14] ALSA: mixart: Use auto-cleanup for firmware loading

[Takashi Iwai]

Simplify the code to manage the firmware loading with __free(firmware)
auto-cleanup.

Only the code refactoring, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/mixart/mixart_hwdep.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sound/pci/mixart/mixart_hwdep.c b/sound/pci/mixart/mixart_hwdep.c
index 439e3ff05fe1..aa8d5bae30d0 100644
--- a/sound/pci/mixart/mixart_hwdep.c
+++ b/sound/pci/mixart/mixart_hwdep.c
@@ -560,12 +560,11 @@ int snd_mixart_setup_firmware(struct mixart_mgr *mgr)
 		"miXart8.xlx", "miXart8.elf", "miXart8AES.xlx"
 	};
 	char path[32];
-
-	const struct firmware *fw_entry;
 	int i, err;
 
 	for (i = 0; i < 3; i++) {
 		sprintf(path, "mixart/%s", fw_files[i]);
+		const struct firmware *fw_entry __free(firmware) = NULL;
 		if (request_firmware(&fw_entry, path, &mgr->pci->dev)) {
 			dev_err(&mgr->pci->dev,
 				"miXart: can't load firmware %s\n", path);
@@ -573,7 +572,6 @@ int snd_mixart_setup_firmware(struct mixart_mgr *mgr)
 		}
 		/* fake hwdep dsp record */
 		err = mixart_dsp_load(mgr, i, fw_entry);
-		release_firmware(fw_entry);
 		if (err < 0)
 			return err;
 		mgr->dsp_loaded |= 1 << i;
-- 
2.55.0

[PATCH 13/14] ALSA: pcxhr: Use auto-cleanup for firmware loading

[Takashi Iwai]

Simplify the code to manage the firmware loading with __free(firmware)
auto-cleanup.

Only the code refactoring, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/pcxhr/pcxhr_hwdep.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/pci/pcxhr/pcxhr_hwdep.c b/sound/pci/pcxhr/pcxhr_hwdep.c
index 249805065f61..54f3950579aa 100644
--- a/sound/pci/pcxhr/pcxhr_hwdep.c
+++ b/sound/pci/pcxhr/pcxhr_hwdep.c
@@ -367,7 +367,6 @@ int pcxhr_setup_firmware(struct pcxhr_mgr *mgr)
 	};
 	char path[32];
 
-	const struct firmware *fw_entry;
 	int i, err;
 	int fw_set = mgr->fw_file_set;
 
@@ -375,6 +374,7 @@ int pcxhr_setup_firmware(struct pcxhr_mgr *mgr)
 		if (!fw_files[fw_set][i])
 			continue;
 		sprintf(path, "pcxhr/%s", fw_files[fw_set][i]);
+		const struct firmware *fw_entry __free(firmware) = NULL;
 		if (request_firmware(&fw_entry, path, &mgr->pci->dev)) {
 			dev_err(&mgr->pci->dev,
 				"pcxhr: can't load firmware %s\n",
@@ -383,7 +383,6 @@ int pcxhr_setup_firmware(struct pcxhr_mgr *mgr)
 		}
 		/* fake hwdep dsp record */
 		err = pcxhr_dsp_load(mgr, i, fw_entry);
-		release_firmware(fw_entry);
 		if (err < 0)
 			return err;
 		mgr->dsp_loaded |= 1 << i;
-- 
2.55.0

[PATCH 14/14] ALSA: sh: Use auto-cleanup for firmware loading

[Takashi Iwai]

Simplify the code to manage the firmware loading with __free(firmware)
auto-cleanup.

Only the code refactoring, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/sh/aica.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/sh/aica.c b/sound/sh/aica.c
index 8196e1bf0416..078fc7fc08f9 100644
--- a/sound/sh/aica.c
+++ b/sound/sh/aica.c
@@ -518,8 +518,9 @@ static const struct snd_kcontrol_new snd_aica_pcmvolume_control = {
 static int load_aica_firmware(void)
 {
 	int err;
-	const struct firmware *fw_entry;
 	spu_reset();
+
+	const struct firmware *fw_entry __free(firmware) = NULL;
 	err = request_firmware(&fw_entry, "aica_firmware.bin", &pd->dev);
 	if (unlikely(err))
 		return err;
@@ -527,7 +528,6 @@ static int load_aica_firmware(void)
 	spu_disable();
 	spu_memload(0, fw_entry->data, fw_entry->size);
 	spu_enable();
-	release_firmware(fw_entry);
 	return err;
 }
 
-- 
2.55.0

Re: [PATCH 06/14] ALSA: hda: cs35l56: Use auto-cleanup for firmware loading

[Charles Keepax]

On Wed, Jul 29, 2026 at 10:37:24AM +0200, Takashi Iwai wrote:
> Simplify the code to manage the firmware loading with auto-cleanup.
> By the use of __free(firmware), we can replace the manual mutex locks
> with guard() gracefully, too.
> 
> Only the code refactoring, no functional changes.
> 
> Cc: patches@opensource.cirrus.com
> Signed-off-by: Takashi Iwai <tiwai@suse.de>
> ---
>  sound/hda/codecs/side-codecs/cs35l56_hda.c | 35 ++++++----------------
>  1 file changed, 9 insertions(+), 26 deletions(-)
> 
> diff --git a/sound/hda/codecs/side-codecs/cs35l56_hda.c b/sound/hda/codecs/side-codecs/cs35l56_hda.c
> index 78c2cf387a00..bc207ab5b020 100644
> --- a/sound/hda/codecs/side-codecs/cs35l56_hda.c
> +++ b/sound/hda/codecs/side-codecs/cs35l56_hda.c
> @@ -527,18 +527,6 @@ static void cs35l56_hda_request_firmware_files(struct cs35l56_hda *cs35l56,
>  						  base_name, NULL, NULL, "bin");
>  }
>  
> -static void cs35l56_hda_release_firmware_files(const struct firmware *wmfw_firmware,
> -					       char *wmfw_filename,
> -					       const struct firmware *coeff_firmware,
> -					       char *coeff_filename)
> -{
> -	release_firmware(wmfw_firmware);
> -	kfree(wmfw_filename);
> -
> -	release_firmware(coeff_firmware);
> -	kfree(coeff_filename);
> -}
> -
>  static int cs35l56_hda_apply_calibration(struct cs35l56_hda *cs35l56)
>  {
>  	int ret;
> @@ -561,10 +549,10 @@ static int cs35l56_hda_apply_calibration(struct cs35l56_hda *cs35l56)
>  
>  static void cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56)
>  {
> -	const struct firmware *coeff_firmware = NULL;
> -	const struct firmware *wmfw_firmware = NULL;
> -	char *coeff_filename = NULL;
> -	char *wmfw_filename = NULL;
> +	const struct firmware *coeff_firmware __free(firmware) = NULL;
> +	const struct firmware *wmfw_firmware __free(firmware) = NULL;

Is it definitely safe to replace release_firmware with kfree? In
most cases that is all release_firmware does, but it looks like
it does different stuff if someone built the firmware into the
kernel?

Thanks,
Charles

Re: [PATCH 06/14] ALSA: hda: cs35l56: Use auto-cleanup for firmware loading

[Takashi Iwai]

On Thu, 30 Jul 2026 11:35:56 +0200,
Charles Keepax wrote:
> 
> On Wed, Jul 29, 2026 at 10:37:24AM +0200, Takashi Iwai wrote:
> > Simplify the code to manage the firmware loading with auto-cleanup.
> > By the use of __free(firmware), we can replace the manual mutex locks
> > with guard() gracefully, too.
> > 
> > Only the code refactoring, no functional changes.
> > 
> > Cc: patches@opensource.cirrus.com
> > Signed-off-by: Takashi Iwai <tiwai@suse.de>
> > ---
> >  sound/hda/codecs/side-codecs/cs35l56_hda.c | 35 ++++++----------------
> >  1 file changed, 9 insertions(+), 26 deletions(-)
> > 
> > diff --git a/sound/hda/codecs/side-codecs/cs35l56_hda.c b/sound/hda/codecs/side-codecs/cs35l56_hda.c
> > index 78c2cf387a00..bc207ab5b020 100644
> > --- a/sound/hda/codecs/side-codecs/cs35l56_hda.c
> > +++ b/sound/hda/codecs/side-codecs/cs35l56_hda.c
> > @@ -527,18 +527,6 @@ static void cs35l56_hda_request_firmware_files(struct cs35l56_hda *cs35l56,
> >  						  base_name, NULL, NULL, "bin");
> >  }
> >  
> > -static void cs35l56_hda_release_firmware_files(const struct firmware *wmfw_firmware,
> > -					       char *wmfw_filename,
> > -					       const struct firmware *coeff_firmware,
> > -					       char *coeff_filename)
> > -{
> > -	release_firmware(wmfw_firmware);
> > -	kfree(wmfw_filename);
> > -
> > -	release_firmware(coeff_firmware);
> > -	kfree(coeff_filename);
> > -}
> > -
> >  static int cs35l56_hda_apply_calibration(struct cs35l56_hda *cs35l56)
> >  {
> >  	int ret;
> > @@ -561,10 +549,10 @@ static int cs35l56_hda_apply_calibration(struct cs35l56_hda *cs35l56)
> >  
> >  static void cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56)
> >  {
> > -	const struct firmware *coeff_firmware = NULL;
> > -	const struct firmware *wmfw_firmware = NULL;
> > -	char *coeff_filename = NULL;
> > -	char *wmfw_filename = NULL;
> > +	const struct firmware *coeff_firmware __free(firmware) = NULL;
> > +	const struct firmware *wmfw_firmware __free(firmware) = NULL;
> 
> Is it definitely safe to replace release_firmware with kfree? In
> most cases that is all release_firmware does, but it looks like
> it does different stuff if someone built the firmware into the
> kernel?

It's __free(firmware), not __free(kfree) :)


Takashi

Re: [PATCH 06/14] ALSA: hda: cs35l56: Use auto-cleanup for firmware loading

[Charles Keepax]

On Thu, Jul 30, 2026 at 11:45:49AM +0200, Takashi Iwai wrote:
> On Thu, 30 Jul 2026 11:35:56 +0200,
> Charles Keepax wrote:
> > 
> > On Wed, Jul 29, 2026 at 10:37:24AM +0200, Takashi Iwai wrote:
> > > Simplify the code to manage the firmware loading with auto-cleanup.
> > > By the use of __free(firmware), we can replace the manual mutex locks
> > > with guard() gracefully, too.
> > > 
> > > Only the code refactoring, no functional changes.
> > > 
> > > Cc: patches@opensource.cirrus.com
> > > Signed-off-by: Takashi Iwai <tiwai@suse.de>
> > > ---
> > >  sound/hda/codecs/side-codecs/cs35l56_hda.c | 35 ++++++----------------
> > >  1 file changed, 9 insertions(+), 26 deletions(-)
> > > 
> > > diff --git a/sound/hda/codecs/side-codecs/cs35l56_hda.c b/sound/hda/codecs/side-codecs/cs35l56_hda.c
> > > index 78c2cf387a00..bc207ab5b020 100644
> > > --- a/sound/hda/codecs/side-codecs/cs35l56_hda.c
> > > +++ b/sound/hda/codecs/side-codecs/cs35l56_hda.c
> > > @@ -527,18 +527,6 @@ static void cs35l56_hda_request_firmware_files(struct cs35l56_hda *cs35l56,
> > >  						  base_name, NULL, NULL, "bin");
> > >  }
> > >  
> > > -static void cs35l56_hda_release_firmware_files(const struct firmware *wmfw_firmware,
> > > -					       char *wmfw_filename,
> > > -					       const struct firmware *coeff_firmware,
> > > -					       char *coeff_filename)
> > > -{
> > > -	release_firmware(wmfw_firmware);
> > > -	kfree(wmfw_filename);
> > > -
> > > -	release_firmware(coeff_firmware);
> > > -	kfree(coeff_filename);
> > > -}
> > > -
> > >  static int cs35l56_hda_apply_calibration(struct cs35l56_hda *cs35l56)
> > >  {
> > >  	int ret;
> > > @@ -561,10 +549,10 @@ static int cs35l56_hda_apply_calibration(struct cs35l56_hda *cs35l56)
> > >  
> > >  static void cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56)
> > >  {
> > > -	const struct firmware *coeff_firmware = NULL;
> > > -	const struct firmware *wmfw_firmware = NULL;
> > > -	char *coeff_filename = NULL;
> > > -	char *wmfw_filename = NULL;
> > > +	const struct firmware *coeff_firmware __free(firmware) = NULL;
> > > +	const struct firmware *wmfw_firmware __free(firmware) = NULL;
> > 
> > Is it definitely safe to replace release_firmware with kfree? In
> > most cases that is all release_firmware does, but it looks like
> > it does different stuff if someone built the firmware into the
> > kernel?
> 
> It's __free(firmware), not __free(kfree) :)

Oops... sorry my bad, must be too early in the morning for me :-)

Thanks,
Charles

Re: [PATCH 06/14] ALSA: hda: cs35l56: Use auto-cleanup for firmware loading

[Richard Fitzgerald]

On 29/7/26 09:37, Takashi Iwai wrote:
> Simplify the code to manage the firmware loading with auto-cleanup.
> By the use of __free(firmware), we can replace the manual mutex locks
> with guard() gracefully, too.
> 
> Only the code refactoring, no functional changes.
> 
> Cc: patches@opensource.cirrus.com
> Signed-off-by: Takashi Iwai <tiwai@suse.de>
> ---
>   sound/hda/codecs/side-codecs/cs35l56_hda.c | 35 ++++++----------------
>   1 file changed, 9 insertions(+), 26 deletions(-)

Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com>