[PATCH v3] usb: usb251xb: fix to avoid potential NULL pointer dereference

[Aditya Pakki]

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>

---
v2: Fix version changes below sign off
v1: avoid return in case of error, per Richard's suggestion.
---
 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 4d72b7d1d383..bbfdb7447d6f 100644
--- a/drivers/usb/misc/usb251xb.c
+++ b/drivers/usb/misc/usb251xb.c
@@ -612,7 +612,7 @@ 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) {
-- 
2.17.1