From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Tue, 1 Oct 2013 15:14:56 +0000 (-0500)
Subject: usb: wusbcore: avoid stack overflow in URB enqueue error path
X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~66^2~122
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=33186c441684de348636f94412d2fc256e641113;p=pandora-kernel.git

usb: wusbcore: avoid stack overflow in URB enqueue error path

This patch modifies wa_urb_enqueue to return an error and not call the
urb completion routine if it failed to enqueue the urb because the HWA
device is gone.  This prevents a stack overflow due to infinite
submit/complete recursion when unplugging the HWA while connected to a
HID device.

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