From: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Date: Sun, 6 Oct 2013 06:08:17 +0000 (-0700)
Subject: USB/host: Bugfix: Return length of copied buffer in uhci_hub_control()
X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~66^2~86
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5a3e2055c56c7c32b51d47bde78c7f7508ffea98;p=pandora-kernel.git

USB/host: Bugfix: Return length of copied buffer in uhci_hub_control()

In addition to the error statuses -ETIMEDOUT and -EPIPE, uhci_hub_control()
needs to return the length of copied buffer when appropriate, so that the
returned status of ->hub_control() in rh_call_control() in the USB core
HCD can be properly handled.

This patch also removes the OK() macro to make the code more readable.

Reviewed-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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