diff options
Diffstat (limited to 'linux/drivers/media/video/cx88/cx88-alsa.c')
| -rw-r--r-- | linux/drivers/media/video/cx88/cx88-alsa.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/linux/drivers/media/video/cx88/cx88-alsa.c b/linux/drivers/media/video/cx88/cx88-alsa.c index 9e87bcb98..a8e985b6f 100644 --- a/linux/drivers/media/video/cx88/cx88-alsa.c +++ b/linux/drivers/media/video/cx88/cx88-alsa.c @@ -385,6 +385,12 @@ static int snd_cx88_pcm_open(struct snd_pcm_substream *substream) struct snd_pcm_runtime *runtime = substream->runtime; int err; + if (!chip) { + printk(KERN_ERR "BUG: cx88 can't find device struct." + " Can't proceed with open\n"); + return -ENODEV; + } + err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS); if (err < 0) goto _error; |