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authorPaul Mackerras <paulus@samba.org>2008-06-30 10:16:50 +1000
committerPaul Mackerras <paulus@samba.org>2008-06-30 10:16:50 +1000
commite9a4b6a3f6592862a67837e80aad3f50468857a6 (patch)
tree087420cf91ac922c7e99757c4490a605ec7b10f2 /drivers/media/video/saa7134/saa7134-alsa.c
parent441dbb500b4344a8e3125e5aabab4f9dbf72514f (diff)
parent1702b52092e9a6d05398d3f9581ddc050ef00d06 (diff)
Merge branch 'linux-2.6'
Diffstat (limited to 'drivers/media/video/saa7134/saa7134-alsa.c')
-rw-r--r--drivers/media/video/saa7134/saa7134-alsa.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/media/video/saa7134/saa7134-alsa.c b/drivers/media/video/saa7134/saa7134-alsa.c
index ba3082422a0..f118de6e367 100644
--- a/drivers/media/video/saa7134/saa7134-alsa.c
+++ b/drivers/media/video/saa7134/saa7134-alsa.c
@@ -613,9 +613,15 @@ static int snd_card_saa7134_capture_open(struct snd_pcm_substream * substream)
struct snd_pcm_runtime *runtime = substream->runtime;
snd_card_saa7134_pcm_t *pcm;
snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream);
- struct saa7134_dev *dev = saa7134->dev;
+ struct saa7134_dev *dev;
int amux, err;
+ if (!saa7134) {
+ printk(KERN_ERR "BUG: saa7134 can't find device struct."
+ " Can't proceed with open\n");
+ return -ENODEV;
+ }
+ dev = saa7134->dev;
mutex_lock(&dev->dmasound.lock);
dev->dmasound.read_count = 0;