Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
ALSA: x86: Clean up locks and runtime PM with guard() and co
Use PM_RUNTIME_ACQUIRE_*() and guard() for replacing the manual calls
of runtime PM and mutex lock in had_audio_wq().
Merely code cleanups and no functional changes.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20251216141154.172218-6-tiwai@suse.de
+3
-7
+3
-7
sound/x86/intel_hdmi_audio.c
+3
-7
sound/x86/intel_hdmi_audio.c
···
1517
1517
container_of(work, struct snd_intelhad, hdmi_audio_wq);
1518
1518
struct intel_hdmi_lpe_audio_pdata *pdata = ctx->dev->platform_data;
1519
1519
struct intel_hdmi_lpe_audio_port_pdata *ppdata = &pdata->port[ctx->port];
1520
-
int ret;
1521
1520
1522
-
ret = pm_runtime_resume_and_get(ctx->dev);
1523
-
if (ret < 0)
1521
+
PM_RUNTIME_ACQUIRE_IF_ENABLED_AUTOSUSPEND(ctx->dev, pm);
1522
+
if (PM_RUNTIME_ACQUIRE_ERR(&pm))
1524
1523
return;
1525
1524
1526
-
mutex_lock(&ctx->mutex);
1525
+
guard(mutex)(&ctx->mutex);
1527
1526
if (ppdata->pipe < 0) {
1528
1527
dev_dbg(ctx->dev, "%s: Event: HAD_NOTIFY_HOT_UNPLUG : port = %d\n",
1529
1528
__func__, ctx->port);
···
1563
1564
/* Restart the stream if necessary */
1564
1565
had_process_mode_change(ctx);
1565
1566
}
1566
-
1567
-
mutex_unlock(&ctx->mutex);
1568
-
pm_runtime_put_autosuspend(ctx->dev);
1569
1567
}
1570
1568
1571
1569
/*