diff --git a/sys/dev/advansys/adv_eisa.c b/sys/dev/advansys/adv_eisa.c
index 6d6fa70ca29c..7457a6b10c7d 100644
--- a/sys/dev/advansys/adv_eisa.c
+++ b/sys/dev/advansys/adv_eisa.c
@@ -75,7 +75,7 @@ __FBSDID("$FreeBSD$");
 /* 
  * The overrun buffer shared amongst all EISA adapters.
  */
-static	u_int8_t*	overrun_buf;
+static	void*		overrun_buf;
 static	bus_dma_tag_t	overrun_dmat;
 static	bus_dmamap_t	overrun_dmamap;
 static	bus_addr_t	overrun_physbase;
@@ -264,7 +264,7 @@ adv_eisa_attach(device_t dev)
 			goto bad;
        		}
 		if (bus_dmamem_alloc(overrun_dmat,
-				     (void **)&overrun_buf,
+				     &overrun_buf,
 				     BUS_DMA_NOWAIT,
 				     &overrun_dmamap) != 0) {
 			bus_dma_tag_destroy(overrun_dmat);
diff --git a/sys/dev/advansys/adv_pci.c b/sys/dev/advansys/adv_pci.c
index 666efdc81d6c..9a0d9ec285e1 100644
--- a/sys/dev/advansys/adv_pci.c
+++ b/sys/dev/advansys/adv_pci.c
@@ -96,7 +96,7 @@ static int adv_pci_attach(device_t);
 /* 
  * The overrun buffer shared amongst all PCI adapters.
  */
-static  u_int8_t*	overrun_buf;
+static  void*		overrun_buf;
 static	bus_dma_tag_t	overrun_dmat;
 static	bus_dmamap_t	overrun_dmamap;
 static	bus_addr_t	overrun_physbase;
@@ -237,7 +237,7 @@ adv_pci_attach(device_t dev)
 			return ENXIO;
        		}
 		if (bus_dmamem_alloc(overrun_dmat,
-				     (void **)&overrun_buf,
+				     &overrun_buf,
 				     BUS_DMA_NOWAIT,
 				     &overrun_dmamap) != 0) {
 			bus_dma_tag_destroy(overrun_dmat);