[PATCH AUTOSEL 4.14 33/43] usb: usb251xb: fix to avoid potential NULL pointer dereference

[Sasha Levin]

From: Aditya Pakki <pakki001@xxxxxxx>

[ 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@xxxxxxx>
Reviewed-by: Richard Leitner <richard.leitner@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin (Microsoft) <sashal@xxxxxxxxxx>
---
 drivers/usb/misc/usb251xb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c
index 135c91c434bf..ba8fcdb377e8 100644
--- a/drivers/usb/misc/usb251xb.c
+++ b/drivers/usb/misc/usb251xb.c
@@ -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) {
-- 
2.19.1