From: Johan Hovold <johan@kernel.org>
Date: Tue, 3 Jan 2017 15:39:40 +0000 (+0100)
Subject: USB: serial: cyberjack: fix NULL-deref at open
X-Git-Tag: v3.2.87~137
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9c44811bd33d5b07d1eb5ee60a5e227971a11ffe;p=pandora-kernel.git

USB: serial: cyberjack: fix NULL-deref at open

commit 3dca01114dcecb1cf324534cd8d75fd1306a516b upstream.

Fix NULL-pointer dereference when clearing halt at open should the device
lack a bulk-out endpoint.

Unable to handle kernel NULL pointer dereference at virtual address 00000030
...
PC is at cyberjack_open+0x40/0x9c [cyberjack]

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Johan Hovold <johan@kernel.org>
[bwh: Backported to 3.2: add this check to the existing
 usb_serial_driver::attach implementation]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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