[PATCH] fix typo in acpi video brightness changes.

Prevent possible null dereference due to misplaced ;

Signed-off-by: Dave Jones <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/acpi/video.c

···
 			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);