ACPI: video: Fix null pointer in appledisplay driver

commit "ACPI: video: Add dev argument for backlight_device_register"
519ab5f2be65b72cf12ae99c89752bbe79b44df6
broke the apple display driver.

Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
index a7932a72d2988425de04921eba702eabe85e9121..31ab83cc95d99ee5a7f477cdd7ef2984d8fa4196 100644 (file)
--- a/drivers/usb/misc/appledisplay.c
+++ b/drivers/usb/misc/appledisplay.c
@@ -281,7 +281,7 @@ static int appledisplay_probe(struct usb_interface *iface,
        /* Register backlight device */
        snprintf(bl_name, sizeof(bl_name), "appledisplay%d",
                atomic_inc_return(&count_displays) - 1);
-       pdata->bd = backlight_device_register(bl_name, NULL, NULL,
+       pdata->bd = backlight_device_register(bl_name, NULL, pdata
                                                &appledisplay_bl_data);
        if (IS_ERR(pdata->bd)) {
                err("appledisplay: Backlight registration failed");