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Subject[PATCH] usb: usb251xb: fix to avoid potential NULL pointer dereference
Date
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>
---
drivers/usb/misc/usb251xb.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c
index 4d72b7d1d383..fe5266dc8864 100644
--- a/drivers/usb/misc/usb251xb.c
+++ b/drivers/usb/misc/usb251xb.c
@@ -612,6 +612,8 @@ static int usb251xb_probe(struct usb251xb *hub)
dev);
int err;

+ if (!of_id)
+ return -ENODEV;
if (np) {
err = usb251xb_get_ofdata(hub,
(struct usb251xb_data *)of_id->data);
--
2.17.1
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