diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 86531ab..e7e9a693 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -1645,7 +1645,7 @@
 			printk(KERN_WARNING PREFIX
 			       "hhuuhhuu bug in acpi video driver.\n");
 
-		if (data->brightness);
+		if (data->brightness)
 			kfree(data->brightness->levels);
 		kfree(data->brightness);
 		kfree(data);