[media] cx18: convert to unlocked_ioctl

[cascardo/linux.git] / drivers / media / video / cx18 / cx18-alsa-pcm.c

diff --git a/drivers/media/video/cx18/cx18-alsa-pcm.c b/drivers/media/video/cx18/cx18-alsa-pcm.c
index 8f55692..82d195b 100644 (file)
--- 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;
 }