[media] media: usb: zr364xx: zr364xx: don't print error when allocating urb fails

kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/usb/zr364xx/zr364xx.c

@@ -1045,10 +1045,8 @@ static int zr364xx_start_readpipe(struct zr364xx_camera *cam)
 	pipe_info->state = 1;
 	pipe_info->err_count = 0;
 	pipe_info->stream_urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!pipe_info->stream_urb) {
-		dev_err(&cam->udev->dev, "ReadStream: Unable to alloc URB\n");
+	if (!pipe_info->stream_urb)
 		return -ENOMEM;
-	}
 	/* transfer buffer allocated in board_init */
 	usb_fill_bulk_urb(pipe_info->stream_urb, cam->udev,
 			  pipe,