From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Fri, 5 Feb 2010 00:43:37 +0000 (-0300)
Subject: V4L/DVB: uvcvideo: Check uvc_ctrl_begin return value in VIDIOC_S_CTRL
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8d55662512127c84ac90873fb68ba44842e2c426;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

V4L/DVB: uvcvideo: Check uvc_ctrl_begin return value in VIDIOC_S_CTRL

The function return value wasn't checked due to a missing variable
assignment.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---

diff --git a/drivers/media/video/uvc/uvc_v4l2.c b/drivers/media/video/uvc/uvc_v4l2.c
index bf1fc7f29ca7..43152aa52227 100644
--- a/drivers/media/video/uvc/uvc_v4l2.c
+++ b/drivers/media/video/uvc/uvc_v4l2.c
@@ -539,7 +539,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
 		xctrl.id = ctrl->id;
 		xctrl.value = ctrl->value;
 
-		uvc_ctrl_begin(chain);
+		ret = uvc_ctrl_begin(chain);
 		if (ret < 0)
 			return ret;