From: Alan Stern <stern@rowland.harvard.edu>
Date: Thu, 3 Dec 2009 19:22:34 +0000 (+0100)
Subject: PM / Runtime: Use deferred_resume flag in pm_request_resume
X-Git-Tag: v2.6.33-rc1~386^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=63c94801701abfea21570d3302687ec027ed33e8;p=pandora-kernel.git

PM / Runtime: Use deferred_resume flag in pm_request_resume

This patch (as1307) adds a small optimization to
__pm_request_resume().  If the device is currently being suspended,
there's no need to queue a work routine to resume it.  Setting the
deferred_resume flag will suffice.  (There's also a minor improvement
to the function's code layout: An unnecessary "else" is removed.)

Also, the patch clarifies the usage of the deferred_resume flag.  It
is meaningful only while a suspend is in progress, so it should be
cleared just before a suspend starts, not just after one ends.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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