video/sn9c102: improve error handling

Commit Message

Dan Carpenter March 28, 2010, 11:50 a.m. UTC

None

Patch

diff --git a/drivers/media/video/sn9c102/sn9c102_core.c b/drivers/media/video/sn9c102/sn9c102_core.c
index cbf8087..28e19da 100644
--- a/drivers/media/video/sn9c102/sn9c102_core.c
+++ b/drivers/media/video/sn9c102/sn9c102_core.c
@@ -2295,7 +2295,7 @@  sn9c102_vidioc_s_ctrl(struct sn9c102_device* cam, void __user * arg)
 	if (copy_from_user(&ctrl, arg, sizeof(ctrl)))
 		return -EFAULT;
 
-	for (i = 0; i < ARRAY_SIZE(s->qctrl); i++)
+	for (i = 0; i < ARRAY_SIZE(s->qctrl); i++) {
 		if (ctrl.id == s->qctrl[i].id) {
 			if (s->qctrl[i].flags & V4L2_CTRL_FLAG_DISABLED)
 				return -EINVAL;
@@ -2305,7 +2305,9 @@  sn9c102_vidioc_s_ctrl(struct sn9c102_device* cam, void __user * arg)
 			ctrl.value -= ctrl.value % s->qctrl[i].step;
 			break;
 		}
-
+	}
+	if (i == ARRAY_SIZE(s->qctrl))
+		return -EINVAL;
 	if ((err = s->set_ctrl(cam, &ctrl)))
 		return err;