From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Fri, 15 Apr 2011 18:08:19 +0000 (+0200)
Subject: mmc: fix a race between card-detect rescan and clock-gate work instances
X-Git-Tag: v2.6.39-rc6~4^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26fc8775b51484d8c0a671198639c6d5ae60533e;p=pandora-kernel.git

mmc: fix a race between card-detect rescan and clock-gate work instances

Currently there is a race in the MMC core between a card-detect
rescan work and the clock-gating work, scheduled from a command
completion. Fix it by removing the dedicated clock-gating mutex
and using the MMC standard locking mechanism instead.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <damm@opensource.se>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: <stable@kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---

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