[PATCH] uvcvideo: check minimum border of control

["Németh Márton" <nm127@freemail.hu>]

Check also the minimum border of a value before setting it
to a control value.

See also http://bugzilla.kernel.org/show_bug.cgi?id=12824 .

Signed-off-by: Márton Németh <nm127@freemail.hu>
---
 drivers/media/video/uvc/uvc_ctrl.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/media/video/uvc/uvc_ctrl.c b/drivers/media/video/uvc/uvc_ctrl.c
--- a/drivers/media/video/uvc/uvc_ctrl.c
+++ b/drivers/media/video/uvc/uvc_ctrl.c
@@ -1068,6 +1068,8 @@ int uvc_ctrl_set(struct uvc_video_chain *chain,
 				    uvc_ctrl_data(ctrl, UVC_CTRL_DATA_RES));

 		xctrl->value = min + (xctrl->value - min + step/2) / step * step;
+		if (xctrl->value < min)
+			xctrl->value = min;
 		if (xctrl->value > max)
 			xctrl->value = max;
 		value = xctrl->value;