diff options
Diffstat (limited to 'drivers/media/video/ivtv/ivtv-ioctl.c')
| -rw-r--r-- | drivers/media/video/ivtv/ivtv-ioctl.c | 22 |
1 files changed, 5 insertions, 17 deletions
diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c index ecafa697326..c4bc4814309 100644 --- a/drivers/media/video/ivtv/ivtv-ioctl.c +++ b/drivers/media/video/ivtv/ivtv-ioctl.c @@ -179,6 +179,7 @@ int ivtv_set_speed(struct ivtv *itv, int speed) ivtv_vapi(itv, CX2341X_DEC_PAUSE_PLAYBACK, 1, 0); /* Wait for any DMA to finish */ + mutex_unlock(&itv->serialize_lock); prepare_to_wait(&itv->dma_waitq, &wait, TASK_INTERRUPTIBLE); while (test_bit(IVTV_F_I_DMA, &itv->i_flags)) { got_sig = signal_pending(current); @@ -188,6 +189,7 @@ int ivtv_set_speed(struct ivtv *itv, int speed) schedule(); } finish_wait(&itv->dma_waitq, &wait); + mutex_lock(&itv->serialize_lock); if (got_sig) return -EINTR; @@ -1107,6 +1109,7 @@ void ivtv_s_std_dec(struct ivtv *itv, v4l2_std_id *std) * happens within the first 100 lines of the top field. * Make 4 attempts to sync to the decoder before giving up. */ + mutex_unlock(&itv->serialize_lock); for (f = 0; f < 4; f++) { prepare_to_wait(&itv->vsync_waitq, &wait, TASK_UNINTERRUPTIBLE); @@ -1115,6 +1118,7 @@ void ivtv_s_std_dec(struct ivtv *itv, v4l2_std_id *std) schedule_timeout(msecs_to_jiffies(25)); } finish_wait(&itv->vsync_waitq, &wait); + mutex_lock(&itv->serialize_lock); if (f == 4) IVTV_WARN("Mode change failed to sync to decoder\n"); @@ -1842,8 +1846,7 @@ static long ivtv_default(struct file *file, void *fh, bool valid_prio, return 0; } -static long ivtv_serialized_ioctl(struct ivtv *itv, struct file *filp, - unsigned int cmd, unsigned long arg) +long ivtv_v4l2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { struct video_device *vfd = video_devdata(filp); long ret; @@ -1855,21 +1858,6 @@ static long ivtv_serialized_ioctl(struct ivtv *itv, struct file *filp, return ret; } -long ivtv_v4l2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) -{ - struct ivtv_open_id *id = fh2id(filp->private_data); - struct ivtv *itv = id->itv; - long res; - - /* DQEVENT can block, so this should not run with the serialize lock */ - if (cmd == VIDIOC_DQEVENT) - return ivtv_serialized_ioctl(itv, filp, cmd, arg); - mutex_lock(&itv->serialize_lock); - res = ivtv_serialized_ioctl(itv, filp, cmd, arg); - mutex_unlock(&itv->serialize_lock); - return res; -} - static const struct v4l2_ioctl_ops ivtv_ioctl_ops = { .vidioc_querycap = ivtv_querycap, .vidioc_s_audio = ivtv_s_audio, |