tree 7419d97cde020b99369a2caaf45af4bd4199e493
parent 353fe198602e8b4d1c7bdcceb8e60955087201b1
author Johan Hovold <jhovold@gmail.com> 1401124971 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1401228242 -0700

USB: sierra: fix use after free at suspend/resume

Fix use after free or NULL-pointer dereference during suspend and
resume.

The port data may never have been allocated (port probe failed)
or may already have been released by port_remove (e.g. driver is
unloaded) when suspend and resume are called.

Fixes: e6929a9020ac ("USB: support for autosuspend in sierra while
online")

Cc: <stable@vger.kernel.org>	# v2.6.32
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>