V4L/DVB (5249): Fix compiler warning in vivi.c

The result of copy_to_user was not used, so the compiler complained
now a warning will be issued if copy_to_user fails.

Signed-off-by: Marcel Siegert <mws@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index 0fb6d520d1d0..f7e1d1910374 100644
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -447,7 +447,8 @@ static void vivi_fillbuff(struct vivi_dev *dev,struct vivi_buffer *buf)
                 if (buf->vb.dma.varea) {
                         gen_line(tmpbuf,0,wmax,hmax,h,dev->timestr);
                         /* FIXME: replacing to __copy_to_user */
-                        copy_to_user(buf->vb.dma.varea+pos,tmpbuf,wmax*2);
+                        if (copy_to_user(buf->vb.dma.varea+pos,tmpbuf,wmax*2)!=0)
+                                dprintk(2,"vivifill copy_to_user failed.\n");
                 } else {
                         gen_line(tmpbuf,pos,wmax,hmax,h,dev->timestr);
                 }