From: Thomas Faber <thfabba@gmx.de>
Date: Fri, 2 Mar 2012 08:41:50 +0000 (+0100)
Subject: usb: gadgetfs: return number of bytes on ep0 read request
X-Git-Tag: v3.2.14~129
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d8808b35aaac220884881a5b11a57ef65d2eb45d;p=pandora-kernel.git

usb: gadgetfs: return number of bytes on ep0 read request

commit 85b4b3c8c189e0159101f7628a71411af072ff69 upstream.

A read from GadgetFS endpoint 0 during the data stage of a control
request would always return 0 on success (as returned by
wait_event_interruptible) despite having written data into the user
buffer.
This patch makes it correctly set the return value to the number of
bytes read.

Signed-off-by: Thomas Faber <thfabba@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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