From: Sakari Ailus <[email protected]>

This patch has been added to the 3.12 stable tree. If you have any
objections, please let us know.

===============

commit b31eb901c4e5eeef4c83c43dfbc7fe0d4348cb21 upstream.

Setting a non-settable selection target caused BUG() to be called. The check
for valid selections only takes the selection target into account, but does
not tell whether it may be set, or only get. Fix the issue by simply
returning an error to the user.

Signed-off-by: Sakari Ailus <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Signed-off-by: Jiri Slaby <[email protected]>
---
 drivers/media/i2c/smiapp/smiapp-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/i2c/smiapp/smiapp-core.c 
b/drivers/media/i2c/smiapp/smiapp-core.c
index ae66d91bf713..371ca22843ee 100644
--- a/drivers/media/i2c/smiapp/smiapp-core.c
+++ b/drivers/media/i2c/smiapp/smiapp-core.c
@@ -2139,7 +2139,7 @@ static int smiapp_set_selection(struct v4l2_subdev 
*subdev,
                ret = smiapp_set_compose(subdev, fh, sel);
                break;
        default:
-               BUG();
+               ret = -EINVAL;
        }
 
        mutex_unlock(&sensor->mutex);
-- 
2.2.1

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