usb: quickcam_messenger 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/usbvideo/quickcam_messenger.c

@@ -190,8 +190,7 @@ static int qcm_alloc_int_urb(struct qcm *cam)
 
 static void qcm_free_int(struct qcm *cam)
 {
-	if (cam->button_urb)
-		usb_free_urb(cam->button_urb);
+	usb_free_urb(cam->button_urb);
 }
 #endif /* CONFIG_INPUT */