1 files changed, 9 insertions, 4 deletions

diff --git a/drivers/platform/x86/classmate-laptop.c b/drivers/platform/x86/classmate-laptop.c
index 035a7dd65a3f..7f9e5ddc9498 100644
--- a/drivers/platform/x86/classmate-laptop.c
+++ b/drivers/platform/x86/classmate-laptop.c
@@ -19,6 +19,7 @@
 
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/workqueue.h>
 #include <acpi/acpi_drivers.h>
 #include <linux/backlight.h>
@@ -455,18 +456,22 @@ static int cmpc_bl_update_status(struct backlight_device *bd)
                 return -1;
 }
 
-static struct backlight_ops cmpc_bl_ops = {
+static const struct backlight_ops cmpc_bl_ops = {
         .get_brightness = cmpc_bl_get_brightness,
         .update_status = cmpc_bl_update_status
 };
 
 static int cmpc_bl_add(struct acpi_device *acpi)
 {
+        struct backlight_properties props;
         struct backlight_device *bd;
 
-        bd = backlight_device_register("cmpc_bl", &acpi->dev,
-                                       acpi->handle, &cmpc_bl_ops);
-        bd->props.max_brightness = 7;
+        memset(&props, 0, sizeof(struct backlight_properties));
+        props.max_brightness = 7;
+        bd = backlight_device_register("cmpc_bl", &acpi->dev, acpi->handle,
+                                       &cmpc_bl_ops, &props);
+        if (IS_ERR(bd))
+                return PTR_ERR(bd);
         dev_set_drvdata(&acpi->dev, bd);
         return 0;
 }