diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index e0f7425..eb30e5a 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -31,6 +31,7 @@
 #include <linux/types.h>
 #include <linux/memory_hotplug.h>
 #include <linux/slab.h>
+#include <linux/acpi.h>
 #include <acpi/acpi_drivers.h>
 
 #define ACPI_MEMORY_DEVICE_CLASS		"memory"
@@ -175,7 +176,7 @@
 	/* Get the parent device */
 	result = acpi_bus_get_device(phandle, &pdevice);
 	if (result) {
-		printk(KERN_WARNING PREFIX "Cannot get acpi bus device");
+		acpi_handle_warn(phandle, "Cannot get acpi bus device\n");
 		return -EINVAL;
 	}
 
@@ -185,14 +186,14 @@
 	 */
 	result = acpi_bus_add(&device, pdevice, handle, ACPI_BUS_TYPE_DEVICE);
 	if (result) {
-		printk(KERN_WARNING PREFIX "Cannot add acpi bus");
+		acpi_handle_warn(handle, "Cannot add acpi bus\n");
 		return -EINVAL;
 	}
 
       end:
 	*mem_device = acpi_driver_data(device);
 	if (!(*mem_device)) {
-		printk(KERN_ERR "\n driver data not found");
+		dev_err(&device->dev, "driver data not found\n");
 		return -ENODEV;
 	}
 
@@ -229,7 +230,8 @@
 	/* Get the range from the _CRS */
 	result = acpi_memory_get_device_resources(mem_device);
 	if (result) {
-		printk(KERN_ERR PREFIX "get_device_resources failed\n");
+		dev_err(&mem_device->device->dev,
+			"get_device_resources failed\n");
 		mem_device->state = MEMORY_INVALID_STATE;
 		return result;
 	}
@@ -276,7 +278,7 @@
 		num_enabled++;
 	}
 	if (!num_enabled) {
-		printk(KERN_ERR PREFIX "add_memory failed\n");
+		dev_err(&mem_device->device->dev, "add_memory failed\n");
 		mem_device->state = MEMORY_INVALID_STATE;
 		return -EINVAL;
 	}
@@ -336,7 +338,7 @@
 			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 					  "\nReceived DEVICE CHECK notification for device\n"));
 		if (acpi_memory_get_device(handle, &mem_device)) {
-			printk(KERN_ERR PREFIX "Cannot find driver data\n");
+			acpi_handle_err(handle, "Cannot find driver data\n");
 			break;
 		}
 
@@ -344,7 +346,7 @@
 			break;
 
 		if (acpi_memory_enable_device(mem_device)) {
-			printk(KERN_ERR PREFIX "Cannot enable memory device\n");
+			acpi_handle_err(handle,"Cannot enable memory device\n");
 			break;
 		}
 
@@ -356,12 +358,12 @@
 				  "\nReceived EJECT REQUEST notification for device\n"));
 
 		if (acpi_bus_get_device(handle, &device)) {
-			printk(KERN_ERR PREFIX "Device doesn't exist\n");
+			acpi_handle_err(handle, "Device doesn't exist\n");
 			break;
 		}
 		mem_device = acpi_driver_data(device);
 		if (!mem_device) {
-			printk(KERN_ERR PREFIX "Driver Data is NULL\n");
+			acpi_handle_err(handle, "Driver Data is NULL\n");
 			break;
 		}
 
@@ -429,13 +431,13 @@
 	/* Set the device state */
 	mem_device->state = MEMORY_POWER_ON_STATE;
 
-	printk(KERN_DEBUG "%s \n", acpi_device_name(device));
+	pr_debug("%s\n", acpi_device_name(device));
 
 	if (!acpi_memory_check_device(mem_device)) {
 		/* call add_memory func */
 		result = acpi_memory_enable_device(mem_device);
 		if (result) {
-			printk(KERN_ERR PREFIX
+			dev_err(&device->dev,
 				"Error in acpi_memory_enable_device\n");
 			acpi_memory_device_free(mem_device);
 		}