From: Felipe Balbi <balbi@ti.com>
Date: Fri, 13 May 2011 13:53:48 +0000 (+0300)
Subject: usb: gadget: rndis: don't test against req->length
X-Git-Tag: v2.6.39.1~50
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4cb5ddcc9b8d2f5714f608924726d3076c7c212b;p=pandora-kernel.git

usb: gadget: rndis: don't test against req->length

commit 472b91274a6c6857877b5caddb875dcb5ecdfcb8 upstream.

composite.c always sets req->length to zero
and expects function driver's setup handlers
to return the amount of bytes to be used
on req->length. If we test against req->length
w_length will always be greater than req->length
thus making us always stall that particular
SEND_ENCAPSULATED_COMMAND request.

Tested against a Windows XP SP3.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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