From: Dan Carpenter <[email protected]>

Return -EINVAL if we don't find the control id.

Signed-off-by: Dan Carpenter <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: Laurent Pinchart <[email protected]>
Cc: Trent Piepho <[email protected]>
Cc: Douglas Schilling Landgraf <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---

 drivers/media/video/cx231xx/cx231xx-video.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff -puN 
drivers/media/video/cx231xx/cx231xx-video.c~cx231xx-improve-error-handling 
drivers/media/video/cx231xx/cx231xx-video.c
--- a/drivers/media/video/cx231xx/cx231xx-video.c~cx231xx-improve-error-handling
+++ a/drivers/media/video/cx231xx/cx231xx-video.c
@@ -1902,9 +1902,12 @@ static int radio_queryctrl(struct file *
        if (c->id < V4L2_CID_BASE || c->id >= V4L2_CID_LASTP1)
                return -EINVAL;
        if (c->id == V4L2_CID_AUDIO_MUTE) {
-               for (i = 0; i < CX231XX_CTLS; i++)
+               for (i = 0; i < CX231XX_CTLS; i++) {
                        if (cx231xx_ctls[i].v.id == c->id)
                                break;
+               }
+               if (i == CX231XX_CTLS)
+                       return -EINVAL;
                *c = cx231xx_ctls[i].v;
        } else
                *c = no_ctl;
_
--
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