From: Alan Stern <stern@rowland.harvard.edu>
Date: Mon, 20 Nov 2006 16:14:30 +0000 (-0500)
Subject: USB hub: simplify remote-wakeup handling
X-Git-Tag: v2.6.20-rc1~34^2~40^2~472^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d25450c68767481f7c9cc4823a6da8235db40be6;p=pandora-kernel.git

USB hub: simplify remote-wakeup handling

This patch (as817) simplifies the remote-wakeup processing in the hub
driver.  Now instead of using a specialized code path, it relies on
the standard USB resume routines.  The hub_port_resume() function does
an initial get_port_status() to see whether the port has already
resumed itself (as it does when a remote-wakeup request is sent).
This will slow down handling of other resume events slightly, but not
enough to matter.

The patch also changes the hub_port_status() routine, making it return
an error if a short reply is received.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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