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

__qbuf_userptr checks whether provided buffer is large enough, and
it returns error without any log.

Signed-off-by: Seung-Woo Kim <[email protected]>
Signed-off-by: Heejin Woo <[email protected]>
Signed-off-by: Sylwester Nawrocki <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index 67ddadd5ea3860d62a886b85439abf12048084a8..ba389f58eec78d74bd27b184ffef025ac25e57f9 100644 (file)
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -1013,6 +1013,10 @@ static int __qbuf_userptr(struct vb2_buffer *vb, const struct v4l2_buffer *b)
 
                /* Check if the provided plane buffer is large enough */
                if (planes[plane].length < q->plane_sizes[plane]) {
+                       dprintk(1, "qbuf: provided buffer size %u is less than "
+                                               "setup size %u for plane %d\n",
+                                               planes[plane].length,
+                                               q->plane_sizes[plane], plane);
                        ret = -EINVAL;
                        goto err;
                }