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Commit 24465b44 authored by Steven Toth's avatar Steven Toth Committed by Mauro Carvalho Chehab
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[media] cx23885: ensure video is streaming before allowing vbi to stream 



Signed-off-by: default avatarSteven Toth <stoth@kernellabs.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent af76e9f6

drivers/media/video/cx23885/cx23885-video.c

+8 −0
Original line number Diff line number Diff line
@@ -1100,6 +1100,14 @@ static int vidioc_streamon(struct file *file, void *priv, 


	if (unlikely(!res_get(dev, fh, get_resource(fh))))

		return -EBUSY;



	/* Don't start VBI streaming unless vida streaming

	 * has already started.

	 */

	if ((fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) &&

		((cx_read(VID_A_DMA_CTL) & 0x11) == 0))

		return -EINVAL;



	return videobuf_streamon(get_queue(fh));

}