diff --git a/drivers/rapidio/devices/rio_mport_cdev.c b/drivers/rapidio/devices/rio_mport_cdev.c
index cbe467ff1aba9d8ca72588f51856f2239dd4d0d9..1e1f42e210a08097da57985fec1b68dfdc60d569 100644
--- a/drivers/rapidio/devices/rio_mport_cdev.c
+++ b/drivers/rapidio/devices/rio_mport_cdev.c
@@ -2149,6 +2149,7 @@ static void mport_release_mapping(struct kref *ref)
 	switch (map->dir) {
 	case MAP_INBOUND:
 		rio_unmap_inb_region(mport, map->phys_addr);
+		/* fall through */
 	case MAP_DMA:
 		dma_free_coherent(mport->dev.parent, map->size,
 				  map->virt_addr, map->phys_addr);