From: Johan Hovold <johan@kernel.org>
Date: Tue, 3 Jan 2017 15:39:47 +0000 (+0100)
Subject: USB: serial: iuu_phoenix: fix NULL-deref at open
X-Git-Tag: v3.2.87~132
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=a318411d01c7bac770dbfbcbd21aa40bfe91c205;hp=a318411d01c7bac770dbfbcbd21aa40bfe91c205

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

commit 90507d54f712d81b74815ef3a4bbb555cd9fab2f upstream.

Fix NULL-pointer dereference at open should the device lack a bulk-in or
bulk-out endpoint:

Unable to handle kernel NULL pointer dereference at virtual address 00000030
...
PC is at iuu_open+0x78/0x59c [iuu_phoenix]

Fixes: 07c3b1a10016 ("USB: remove broken usb-serial num_endpoints
check")
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>
---