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 <nm...@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;

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