tree 442cf1fa484c3a4e1950cbf162cd28646b54c087
parent 5d9b0f859babe96175cd33d7162a9463a875ffde
author Johan Hovold <johan@kernel.org> 1483457989 +0100
committer Johan Hovold <johan@kernel.org> 1483522638 +0100

USB: serial: kobil_sct: fix NULL-deref in write

Fix NULL-pointer dereference in write() should the device lack the
expected interrupt-out endpoint:

Unable to handle kernel NULL pointer dereference at virtual address 00000054
...
PC is at kobil_write+0x144/0x2a0 [kobil_sct]

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>