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usb: usb251xb: fix to avoid potential NULL pointer dereference

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[ 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>
This commit is contained in:
Aditya Pakki 2019-03-20 10:27:11 -05:00 committed by Greg Kroah-Hartman
parent 5d429f7624
commit 085df4a0ed
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/misc/usb251xb.c
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@ -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) {