backlight: fix class_find_device() arguments
Michał's previous patch missed this backlight check to fix up the
class_find_device() arguments.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
index 345f666..c74e7aa 100644
--- a/drivers/video/backlight/backlight.c
+++ b/drivers/video/backlight/backlight.c
@@ -371,7 +371,7 @@
EXPORT_SYMBOL(backlight_device_unregister);
#ifdef CONFIG_OF
-static int of_parent_match(struct device *dev, void *data)
+static int of_parent_match(struct device *dev, const void *data)
{
return dev->parent && dev->parent->of_node == data;
}