From: Johan Hovold <johan@kernel.org>
Date: Wed, 18 Feb 2015 03:34:50 +0000 (+0700)
Subject: USB: serial: fix potential use-after-free after failed probe
X-Git-Tag: v3.2.69~151
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7f073a838187213d46fdd4bc8f319ad6195165d2;p=pandora-kernel.git

USB: serial: fix potential use-after-free after failed probe

commit 07fdfc5e9f1c966be8722e8fa927e5ea140df5ce upstream.

Fix return value in probe error path, which could end up returning
success (0) on errors. This could in turn lead to use-after-free or
double free (e.g. in port_remove) when the port device is removed.

Fixes: c706ebdfc895 ("USB: usb-serial: call port_probe and port_remove
at the right times")
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Greg Kroah-Hartman <greg@kroah.com>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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