[media] v4l2-ioctl: set readbuffers to 2 in g_parm

If g_parm is handled automatically, then set readbuffers to 2, which is the
minimum number of buffers videobuf uses.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 91be4e871f43644c2052c942092a3f808688c9a8..d7fa8962d8b3129940514cb487d0d75a8931dbdd 100644 (file)
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -1680,6 +1680,7 @@ static long __video_do_ioctl(struct file *file,
                                break;
 
                        ret = 0;
+                       p->parm.capture.readbuffers = 2;
                        if (ops->vidioc_g_std)
                                ret = ops->vidioc_g_std(file, fh, &std);
                        if (ret == 0)