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ALSA: sparc: fix missing unlock on error in snd_cs4231_playback_prepare() 

Add the missing unlock before return from function
snd_cs4231_playback_prepare() in the error handling
case.

Fixes: 5a19b178d7 ('ALSA: sparc/cs4231: Use WARN_ON() instead of BUG_ON()')
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Wei Yongjun 2013-11-11 22:21:33 +08:00 committed by Takashi Iwai
parent 0c52db8cca
commit a522409e9c
1 changed files with 8 additions and 3 deletions
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11
sound/sparc/cs4231.c
View File

@ -907,19 +907,24 @@ static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream)
struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned long flags;
int ret = 0;
spin_lock_irqsave(&chip->lock, flags);
chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
CS4231_PLAYBACK_PIO);
if (WARN_ON(runtime->period_size > 0xffff + 1))
return -EINVAL;
if (WARN_ON(runtime->period_size > 0xffff + 1)) {
ret = -EINVAL;
goto out;
}
chip->p_periods_sent = 0;
out:
spin_unlock_irqrestore(&chip->lock, flags);
return 0;
return ret;
}
static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream,