Commit 085df4a0 authored Mar 20, 2019 by Aditya Pakki Committed by Greg Kroah-Hartman May 04, 2019

usb: usb251xb: fix to avoid potential NULL pointer dereference



[ Upstream commit 41f00e6e9e55546390031996b773e7f3c1d95928 ]

of_match_device in usb251xb_probe can fail and returns a NULL pointer.
The patch avoids a potential NULL pointer dereference in this scenario.

Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Reviewed-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>

parent 5d429f76

drivers/usb/misc/usb251xb.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -530,7 +530,7 @@ static int usb251xb_probe(struct usb251xb *hub)
		dev);
		int err;

		if (np) {
		if (np && of_id) {
		err = usb251xb_get_ofdata(hub,
		(struct usb251xb_data *)of_id->data);
		if (err) {