diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 4d59ae8491a4..b135a1ed4b2c 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -151,19 +151,19 @@ mega_setup_mailbox(adapter_t *adapter)
 	 */
 	if( adapter->flag & BOARD_IOMAP ) {
 
-		outb_p(adapter->mbox_dma & 0xFF,
+		outb(adapter->mbox_dma & 0xFF,
 				adapter->host->io_port + MBOX_PORT0);
 
-		outb_p((adapter->mbox_dma >> 8) & 0xFF,
+		outb((adapter->mbox_dma >> 8) & 0xFF,
 				adapter->host->io_port + MBOX_PORT1);
 
-		outb_p((adapter->mbox_dma >> 16) & 0xFF,
+		outb((adapter->mbox_dma >> 16) & 0xFF,
 				adapter->host->io_port + MBOX_PORT2);
 
-		outb_p((adapter->mbox_dma >> 24) & 0xFF,
+		outb((adapter->mbox_dma >> 24) & 0xFF,
 				adapter->host->io_port + MBOX_PORT3);
 
-		outb_p(ENABLE_MBOX_BYTE,
+		outb(ENABLE_MBOX_BYTE,
 				adapter->host->io_port + ENABLE_MBOX_REGION);
 
 		irq_ack(adapter);