[ALSA] Fix ASoC s3c24xx-pcm spinlock bug

This should fix a spinlock lockup bug on the s3c24xx arch.
From: Zoltan Devai <zdevai@gmail.com>

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 2 insertions, 0 deletions

diff --git a/sound/soc/s3c24xx/s3c24xx-pcm.c b/sound/soc/s3c24xx/s3c24xx-pcm.c
index 21dc6974d6a..bfbdc3cbd43 100644
--- a/sound/soc/s3c24xx/s3c24xx-pcm.c
+++ b/sound/soc/s3c24xx/s3c24xx-pcm.c
@@ -337,6 +337,8 @@ static int s3c24xx_pcm_open(struct snd_pcm_substream *substream)
         if (prtd == NULL)
                 return -ENOMEM;
 
+        spin_lock_init(&prtd->lock);
+
         runtime->private_data = prtd;
         return 0;
 }