From 124371e33ce733a81fde8419946adb0d6c14f4c0 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sun, 28 Mar 2010 08:50:05 -0300 Subject: [PATCH] V4L/DVB: video/sn9c102: improve error handling Return an error if the controller is not found. Signed-off-by: Dan Carpenter Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/sn9c102/sn9c102_core.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) 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; -- 2.7.4