From: Alan Stern <stern@rowland.harvard.edu>
Date: Thu, 21 Jun 2007 20:25:35 +0000 (-0400)
Subject: USB: Don't resume root hub if the controller is suspended
X-Git-Tag: v2.6.23-rc1~1083^2~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cfa59dab27d1b282886e7772a8f9548236883892;p=pandora-kernel.git

USB: Don't resume root hub if the controller is suspended

Root hubs can't be resumed if their parent controller device is still
suspended.  This patch (as925) adds a check for that condition in
hcd_bus_resume() and prevents it from being treated as a fatal
controller failure.

ehci-hcd is updated to add the corresponding test.  Unnecessary
debugging messages are removed from uhci-hcd and dummy-hcd.  The
error return code from dummy-hcd is changed to -ESHUTDOWN, the same as
the others.  ohci-hcd doesn't need any changes.

Suspend handling in the non-PCI host drivers is somewhat hit-and-miss.
This patch shouldn't have any effect on them.

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