usb: usb251xb: fix to avoid potential NULL pointer dereference
authorAditya Pakki <pakki001@umn.edu>
Wed, 20 Mar 2019 15:27:11 +0000 (10:27 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 26 Mar 2019 07:48:55 +0000 (16:48 +0900)
commit41f00e6e9e55546390031996b773e7f3c1d95928
tree7f73df8ce07550130c144d8c314e9fe3642c1e67
parente671765e521c571afec3157a7e17502d54f6a43e
usb: usb251xb: fix to avoid potential NULL pointer dereference

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>
drivers/usb/misc/usb251xb.c