1 files changed, 11 insertions, 5 deletions

diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c
index f5f70d4c6913..d1736009636f 100644
--- a/drivers/platform/x86/msi-wmi.c
+++ b/drivers/platform/x86/msi-wmi.c
@@ -26,6 +26,7 @@
 #include <linux/input/sparse-keymap.h>
 #include <linux/acpi.h>
 #include <linux/backlight.h>
+#include <linux/slab.h>
 
 MODULE_AUTHOR("Thomas Renninger <trenn@suse.de>");
 MODULE_DESCRIPTION("MSI laptop WMI hotkeys driver");
@@ -138,7 +139,7 @@ static int bl_set_status(struct backlight_device *bd)
         return msi_wmi_set_block(0, backlight_map[bright]);
 }
 
-static struct backlight_ops msi_backlight_ops = {
+static const struct backlight_ops msi_backlight_ops = {
         .get_brightness = bl_get,
         .update_status  = bl_set_status,
 };
@@ -249,12 +250,17 @@ static int __init msi_wmi_init(void)
                 goto err_uninstall_notifier;
 
         if (!acpi_video_backlight_support()) {
-                backlight = backlight_device_register(DRV_NAME,
-                                NULL, NULL, &msi_backlight_ops);
-                if (IS_ERR(backlight))
+                struct backlight_properties props;
+                memset(&props, 0, sizeof(struct backlight_properties));
+                props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
+                backlight = backlight_device_register(DRV_NAME, NULL, NULL,
+                                                      &msi_backlight_ops,
+                                                      &props);
+                if (IS_ERR(backlight)) {
+                        err = PTR_ERR(backlight);
                         goto err_free_input;
+                }
 
-                backlight->props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
                 err = bl_get(NULL);
                 if (err < 0)
                         goto err_free_backlight;