usb: cdc-acm: fix error handling in acm_probe()
authorAlexey Khoroshilov <khoroshilov@ispras.ru>
Fri, 15 Mar 2013 21:30:32 +0000 (01:30 +0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 21 Mar 2013 22:59:01 +0000 (15:59 -0700)
commitc93d81955005c2ac0ea072f88d376026208410e1
treebae48113a39cf83c55a8f25316d5c78bdd203061
parentd93acbcacdec04dbdab0d1cc35457eb3bf1d2a38
usb: cdc-acm: fix error handling in acm_probe()

acm_probe() ignores errors in tty_port_register_device()
and leaves intfdata pointing to freed memory on alloc_fail7
error path. The patch fixes the both issues.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/class/cdc-acm.c