From: Dan Carpenter Date: Sun, 28 Mar 2010 11:49:45 +0000 (-0300) Subject: V4L/DVB: video/et61x251: improve error handling X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=67e13e7709736b3b25dda98f92cc7164b210dda6;p=openwrt%2Fstaging%2Fblogic.git V4L/DVB: video/et61x251: improve error handling The original code doesn't handle the situation where the controller is not found. Signed-off-by: Dan Carpenter Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/et61x251/et61x251_core.c b/drivers/media/video/et61x251/et61x251_core.c index e6c23d509862..a5cfc76b40b7 100644 --- a/drivers/media/video/et61x251/et61x251_core.c +++ b/drivers/media/video/et61x251/et61x251_core.c @@ -1713,7 +1713,7 @@ et61x251_vidioc_s_ctrl(struct et61x251_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; @@ -1723,7 +1723,9 @@ et61x251_vidioc_s_ctrl(struct et61x251_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;