From a39b9854c79cc9ac7b7b6fed58cf07da23f1f41e Mon Sep 17 00:00:00 2001
From: "Kim, Milo" <Milo.Kim@ti.com>
Date: Wed, 22 Aug 2012 15:32:45 +0800
Subject: [PATCH] leds-lp5523: set the brightness to 0 forcely on removing the
 driver

Turning off the brightness of each channel is required
when removing the driver.

So use flush_work() rather than cancel_work_sync() to execute
remaining brightness works.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
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