From: Seung-Woo Kim <sw0312.kim@samsung.com>
Date: Fri, 29 Nov 2013 07:50:29 +0000 (-0300)
Subject: [media] videobuf2: Add log for size checking error in __qbuf_dmabuf
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=77c0782e9729cee9d1d67cd1343ed7c3f947a36a;p=openwrt%2Fstaging%2Fblogic.git

[media] videobuf2: Add log for size checking error in __qbuf_dmabuf

__qbuf_dmabuf checks whether size of provided dmabuf is large
enough, and it returns error without any log. So this patch adds
error log in the case.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---

diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index e949a0e64be9..144caf12fb6c 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -1116,6 +1116,8 @@ static int __qbuf_dmabuf(struct vb2_buffer *vb, const struct v4l2_buffer *b)
 
 		if (planes[plane].length < planes[plane].data_offset +
 		    q->plane_sizes[plane]) {
+			dprintk(1, "qbuf: invalid dmabuf length for plane %d\n",
+				plane);
 			ret = -EINVAL;
 			goto err;
 		}