Commit 2ca48ed5 authored by Michael Hanselmann's avatar Michael Hanselmann Committed by Linus Torvalds

[PATCH] null pointer dereference in appledisplay driver

Commit 40b20c25 by Len Brown introduced
a null pointer dereference in the appledisplay driver. This patch fixes
Signed-off-by: default avatarMichael Hanselmann <>
Cc: Len Brown <>
Cc: Greg KH <>
Cc: Benjamin Herrenschmidt <>
Cc: Richard Purdie <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 509cb37e
......@@ -281,8 +281,8 @@ 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");
goto error;
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