diff --git a/drivers/serial/ioc4_serial.c b/drivers/serial/ioc4_serial.c
index c862f67..f540212 100644
--- a/drivers/serial/ioc4_serial.c
+++ b/drivers/serial/ioc4_serial.c
@@ -2685,7 +2685,7 @@
 		free_irq(control->ic_irq, soft);
 		if (soft->is_ioc4_serial_addr) {
 			iounmap(soft->is_ioc4_serial_addr);
-			release_region((unsigned long)
+			release_mem_region((unsigned long)
 			     soft->is_ioc4_serial_addr,
 				sizeof(struct ioc4_serial));
 		}
@@ -2790,7 +2790,7 @@
 	/* request serial registers */
 	tmp_addr1 = idd->idd_bar0 + IOC4_SERIAL_OFFSET;
 
-	if (!request_region(tmp_addr1, sizeof(struct ioc4_serial),
+	if (!request_mem_region(tmp_addr1, sizeof(struct ioc4_serial),
 					"sioc4_uart")) {
 		printk(KERN_WARNING
 			"ioc4 (%p): unable to get request region for "
@@ -2889,7 +2889,7 @@
 out2:
 	if (serial)
 		iounmap(serial);
-	release_region(tmp_addr1, sizeof(struct ioc4_serial));
+	release_mem_region(tmp_addr1, sizeof(struct ioc4_serial));
 out1:
 
 	return ret;