diff options
Diffstat (limited to 'drivers/media/video/cx18/cx18-alsa-pcm.c')
| -rw-r--r-- | drivers/media/video/cx18/cx18-alsa-pcm.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/media/video/cx18/cx18-alsa-pcm.c b/drivers/media/video/cx18/cx18-alsa-pcm.c index 8f55692db36..82d195be919 100644 --- a/drivers/media/video/cx18/cx18-alsa-pcm.c +++ b/drivers/media/video/cx18/cx18-alsa-pcm.c @@ -218,7 +218,13 @@ static int snd_cx18_pcm_capture_close(struct snd_pcm_substream *substream) static int snd_cx18_pcm_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg) { - return snd_pcm_lib_ioctl(substream, cmd, arg); + struct snd_cx18_card *cxsc = snd_pcm_substream_chip(substream); + int ret; + + snd_cx18_lock(cxsc); + ret = snd_pcm_lib_ioctl(substream, cmd, arg); + snd_cx18_unlock(cxsc); + return ret; } |