From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 3 Jan 2012 13:59:40 +0000 (+0100)
Subject: staging:iio:events: Use waitqueue lock to protect event queue
X-Git-Tag: v3.4-rc1~186^2~176^2~37
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=43ba1100af11f34cc67bdf6b359667cfa851e6a8;p=pandora-kernel.git

staging:iio:events: Use waitqueue lock to protect event queue

Use the waitqueue lock to protect the event queue instead of a custom mutex.
This has the advantage that we can call the waitqueue operations with the lock
held, which simplifies the code flow a bit.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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