From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Wed, 20 Aug 2008 23:56:04 +0000 (-0700)
Subject: USB: cdc-acm: don't unlock acm->mutex on error path
X-Git-Tag: v2.6.27-rc5~55^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=74573ee7096a4ffc2f098108d21c85801b9c7434;p=pandora-kernel.git

USB: cdc-acm: don't unlock acm->mutex on error path

On Wed, Jul 23, 2008 at 03:52:36PM +0300, Andrei Popa wrote:
> I installed gnokii-0.6.22-r2 and gave the command "gnokii --identify"
> and the kernel oopsed:
>
> BUG: unable to handle kernel NULL pointer dereference at 00000458
> IP: [<c0444b52>] mutex_unlock+0x0/0xb
>  [<c03830ae>] acm_tty_open+0x4c/0x214

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Tested-by: Andrei Popa <andrei.popa@i-neo.ro>
Cc: stable <stable@kernel.org>		[2.6.25.x, 2.6.26.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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