From: Ming Lei <tom.leiming@gmail.com>
Date: Fri, 16 Dec 2011 14:20:01 +0000 (+0800)
Subject: USB: usb-skeleton.c: fix open/disconnect race
X-Git-Tag: v3.3-rc1~153^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26c71a79cade5ccad80e0752cd82f3518df48fb3;p=pandora-kernel.git

USB: usb-skeleton.c: fix open/disconnect race

If usb device is disconnected between usb_get_intfdata()
and kref_get() in skel_open(), kref_get may access a freed
object.

Also check if device is disconnected in ->open.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

Reading git-diff-tree failed