usb: pvrusb2-io free urb cleanup

- usb_free_urb() cleanup
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/media/video/pvrusb2/pvrusb2-io.c

@@ -289,7 +289,7 @@ static void pvr2_buffer_done(struct pvr2_buffer *bp)
 	pvr2_buffer_set_none(bp);
 	bp->signature = 0;
 	bp->stream = NULL;
-	if (bp->purb) usb_free_urb(bp->purb);
+	usb_free_urb(bp->purb);
 	pvr2_trace(PVR2_TRACE_BUF_POOL,"/*---TRACE_FLOW---*/"
 		   " bufferDone     %p",bp);
 }