staging: unisys: visorbus: use guid_is_equal instead of memcmp

The function publish_vbus_dev_info was doing a memcmp of guids. It should
be using the kernel provided guid_equal function instead.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <timothy.sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/visorbus/visorbus_main.c

@@ -855,9 +855,8 @@ static void publish_vbus_dev_info(struct visor_device *visordev)
 	 * type name
 	 */
 	for (i = 0; visordrv->channel_types[i].name; i++) {
-		if (memcmp(&visordrv->channel_types[i].guid,
-			   &visordev->channel_type_guid,
-			   sizeof(visordrv->channel_types[i].guid)) == 0) {
+		if (guid_equal(&visordrv->channel_types[i].guid,
+			       &visordev->channel_type_guid)) {
 			chan_type_name = visordrv->channel_types[i].name;
 			break;
 		}