superrob1500
/
mirror-linux
mirror of https://github.com/torvalds/linux
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ALSA: cs5535audio: Use guard() for spin locks 

Clean up the code using guard() for spin locks.

Merely code refactoring, and no behavior change.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250829144342.4290-22-tiwai@suse.de
pull/476/head
Takashi Iwai 2025-08-29 16:42:56 +02:00
parent 0ba9da2d6f
commit e8eca9fec2
2 changed files with 12 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
sound/pci/cs5535audio/cs5535audio.c
View File

@ -176,9 +176,10 @@ static int snd_cs5535audio_mixer(struct cs5535audio *cs5535au)
static void process_bm0_irq(struct cs5535audio *cs5535au)
{
u8 bm_stat;
spin_lock(&cs5535au->reg_lock);
bm_stat = cs_readb(cs5535au, ACC_BM0_STATUS);
spin_unlock(&cs5535au->reg_lock);
scoped_guard(spinlock, &cs5535au->reg_lock) {
bm_stat = cs_readb(cs5535au, ACC_BM0_STATUS);
}
if (bm_stat & EOP) {
snd_pcm_period_elapsed(cs5535au->playback_substream);
} else {
@ -191,9 +192,10 @@ static void process_bm0_irq(struct cs5535audio *cs5535au)
static void process_bm1_irq(struct cs5535audio *cs5535au)
{
u8 bm_stat;
spin_lock(&cs5535au->reg_lock);
bm_stat = cs_readb(cs5535au, ACC_BM1_STATUS);
spin_unlock(&cs5535au->reg_lock);
scoped_guard(spinlock, &cs5535au->reg_lock) {
bm_stat = cs_readb(cs5535au, ACC_BM1_STATUS);
}
if (bm_stat & EOP)
snd_pcm_period_elapsed(cs5535au->capture_substream);
}

12
sound/pci/cs5535audio/cs5535audio_pcm.c
View File

@ -150,10 +150,9 @@ static int cs5535audio_build_dma_packets(struct cs5535audio *cs5535au,
dma->substream = substream;
dma->period_bytes = period_bytes;
dma->periods = periods;
spin_lock_irq(&cs5535au->reg_lock);
guard(spinlock_irq)(&cs5535au->reg_lock);
dma->ops->disable_dma(cs5535au);
dma->ops->setup_prd(cs5535au, jmpprd_addr);
spin_unlock_irq(&cs5535au->reg_lock);
return 0;
}
@ -276,9 +275,8 @@ static int snd_cs5535audio_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream);
struct cs5535audio_dma *dma = substream->runtime->private_data;
int err = 0;
spin_lock(&cs5535au->reg_lock);
guard(spinlock)(&cs5535au->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
dma->ops->pause_dma(cs5535au);
@ -300,11 +298,9 @@ static int snd_cs5535audio_trigger(struct snd_pcm_substream *substream, int cmd)
break;
default:
dev_err(cs5535au->card->dev, "unhandled trigger\n");
err = -EINVAL;
break;
return -EINVAL;
}
spin_unlock(&cs5535au->reg_lock);
return err;
return 0;
}
static snd_pcm_uframes_t snd_cs5535audio_pcm_pointer(struct snd_pcm_substream