media: videobuf2: remove redundant if-statement

That if-statement seems to be unneeded.
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/common/videobuf2/videobuf2-dma-contig.c

@@ -152,7 +152,6 @@ static void *vb2_dc_alloc(struct device *dev, unsigned long attrs,
 	if (!buf)
 		return ERR_PTR(-ENOMEM);
 
-	if (attrs)
 	buf->attrs = attrs;
 	buf->cookie = dma_alloc_attrs(dev, size, &buf->dma_addr,
 					GFP_KERNEL | gfp_flags, buf->attrs);