From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Fri, 28 Feb 2014 20:31:55 +0000 (-0600)
Subject: usb: wusbcore: fix kernel panic on HWA unplug
X-Git-Tag: v3.15-rc1~137^2~42
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=618836cc3478aec3dc9a60488bfd43ca93a322bd;p=pandora-kernel.git

usb: wusbcore: fix kernel panic on HWA unplug

This patch adds ref counting to sections of code that operate on struct
wa_xfer objects that were missing it.  Specifically, error handling
cases need to be protected from freeing the xfer while it is still in
use elsewhere.  This fixes a kernel panic that can occur when pulling
the HWA dongle while data is being transferred to a wireless device.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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