diff options
Diffstat (limited to 'drivers/media/pci/ttpci/av7110_av.c')
| -rw-r--r-- | drivers/media/pci/ttpci/av7110_av.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/media/pci/ttpci/av7110_av.c b/drivers/media/pci/ttpci/av7110_av.c index 952b33dbac4f..301029ca4535 100644 --- a/drivers/media/pci/ttpci/av7110_av.c +++ b/drivers/media/pci/ttpci/av7110_av.c @@ -1109,6 +1109,9 @@ static int dvb_video_ioctl(struct file *file, } } + if (mutex_lock_interruptible(&av7110->ioctl_mutex)) + return -ERESTARTSYS; + switch (cmd) { case VIDEO_STOP: av7110->videostate.play_state = VIDEO_STOPPED; @@ -1297,6 +1300,7 @@ static int dvb_video_ioctl(struct file *file, break; } + mutex_unlock(&av7110->ioctl_mutex); return ret; } @@ -1314,6 +1318,9 @@ static int dvb_audio_ioctl(struct file *file, (cmd != AUDIO_GET_STATUS)) return -EPERM; + if (mutex_lock_interruptible(&av7110->ioctl_mutex)) + return -ERESTARTSYS; + switch (cmd) { case AUDIO_STOP: if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY) @@ -1442,6 +1449,7 @@ static int dvb_audio_ioctl(struct file *file, ret = -ENOIOCTLCMD; } + mutex_unlock(&av7110->ioctl_mutex); return ret; } |