From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Tue, 30 Aug 2011 21:57:10 +0000 (+0400)
Subject: staging: sep: call to sep_ioctl() may leave driver in unusable state
X-Git-Tag: v3.2-rc1~169^2^2~633
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f19885fadfdb0bf410b5e31c7dc2f2be7815e454;p=pandora-kernel.git

staging: sep: call to sep_ioctl() may leave driver in unusable state

If sep_ioctl() is called from a process that does not own
current transaction, it unlocks unheld sep->ioctl_mutex and
returns -EACCES leaving sep->sep_mutex acquired.

The patch fixes the mutex lock-unlock mismatch.

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

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

Reading git-diff-tree failed