[PATCH 1/3] ALSA: hda/cs35l41: Use scoped_guard() for fw_mutex in cs35l41_hda_bind()

[wangdich9700@163.com]

From: wangdicheng <wangdicheng@kylinos.cn>

The rest of the driver already uses guard()/scoped_guard() for
fw_mutex. Replace the manual mutex_lock/mutex_unlock pair in
cs35l41_hda_bind() with scoped_guard() for consistency.

No functional changes.

Signed-off-by: wangdicheng <wangdicheng@kylinos.cn>
---
 sound/hda/codecs/side-codecs/cs35l41_hda.c | 57 +++++++++++-----------
 1 file changed, 28 insertions(+), 29 deletions(-)

diff --git a/sound/hda/codecs/side-codecs/cs35l41_hda.c b/sound/hda/codecs/side-codecs/cs35l41_hda.c
index 64a5bd895fd1..818ea8e3f8d6 100644
--- a/sound/hda/codecs/side-codecs/cs35l41_hda.c
+++ b/sound/hda/codecs/side-codecs/cs35l41_hda.c
@@ -1482,42 +1482,41 @@ static int cs35l41_hda_bind(struct device *dev, struct device *master, void *mas
 
 	guard(pm_runtime_active_auto)(dev);
 
-	mutex_lock(&cs35l41->fw_mutex);
-
-	comp->dev = dev;
-	cs35l41->codec = parent->codec;
-	if (!cs35l41->acpi_subsystem_id)
-		cs35l41->acpi_subsystem_id = kasprintf(GFP_KERNEL, "%.8x",
-						       cs35l41->codec->core.subsystem_id);
-
-	strscpy(comp->name, dev_name(dev), sizeof(comp->name));
+	scoped_guard(mutex, &cs35l41->fw_mutex) {
+		comp->dev = dev;
+		cs35l41->codec = parent->codec;
+		if (!cs35l41->acpi_subsystem_id)
+			cs35l41->acpi_subsystem_id = kasprintf(GFP_KERNEL, "%.8x",
+							       cs35l41->codec->core.subsystem_id);
 
-	cs35l41->firmware_type = CS35L41_HDA_FW_SPK_PROT;
+		strscpy(comp->name, dev_name(dev), sizeof(comp->name));
 
-	if (firmware_autostart) {
-		dev_dbg(cs35l41->dev, "Firmware Autostart.\n");
-		cs35l41->request_fw_load = true;
-		if (cs35l41_smart_amp(cs35l41) < 0)
-			dev_warn(cs35l41->dev, "Cannot Run Firmware, reverting to dsp bypass...\n");
-	} else {
-		dev_dbg(cs35l41->dev, "Firmware Autostart is disabled.\n");
-	}
+		cs35l41->firmware_type = CS35L41_HDA_FW_SPK_PROT;
 
-	ret = cs35l41_create_controls(cs35l41);
+		if (firmware_autostart) {
+			dev_dbg(cs35l41->dev, "Firmware Autostart.\n");
+			cs35l41->request_fw_load = true;
+			if (cs35l41_smart_amp(cs35l41) < 0)
+				dev_warn(cs35l41->dev, "Cannot Run Firmware, reverting to dsp bypass...\n");
+		} else {
+			dev_dbg(cs35l41->dev, "Firmware Autostart is disabled.\n");
+		}
 
-	comp->playback_hook = cs35l41_hda_playback_hook;
-	comp->pre_playback_hook = cs35l41_hda_pre_playback_hook;
-	comp->post_playback_hook = cs35l41_hda_post_playback_hook;
-	comp->acpi_notify = cs35l41_acpi_device_notify;
-	comp->adev = cs35l41->dacpi;
+		ret = cs35l41_create_controls(cs35l41);
 
-	comp->acpi_notifications_supported = cs35l41_dsm_supported(acpi_device_handle(comp->adev),
-		CS35L41_DSM_GET_MUTE);
+		comp->playback_hook = cs35l41_hda_playback_hook;
+		comp->pre_playback_hook = cs35l41_hda_pre_playback_hook;
+		comp->post_playback_hook = cs35l41_hda_post_playback_hook;
+		comp->acpi_notify = cs35l41_acpi_device_notify;
+		comp->adev = cs35l41->dacpi;
 
-	cs35l41->mute_override = cs35l41_get_acpi_mute_state(cs35l41,
-						acpi_device_handle(cs35l41->dacpi)) > 0;
+		comp->acpi_notifications_supported =
+			cs35l41_dsm_supported(acpi_device_handle(comp->adev),
+					      CS35L41_DSM_GET_MUTE);
 
-	mutex_unlock(&cs35l41->fw_mutex);
+		cs35l41->mute_override = cs35l41_get_acpi_mute_state(cs35l41,
+							acpi_device_handle(cs35l41->dacpi)) > 0;
+	}
 
 	sleep_flags = lock_system_sleep();
 	if (!device_link_add(&cs35l41->codec->core.dev, cs35l41->dev, DL_FLAG_STATELESS))
-- 
2.25.1