From: Jochen Friedrich <jochen@scram.de>
Date: Wed, 27 Aug 2008 10:32:25 +0000 (+0200)
Subject: powerpc/cpm1: Fix race condition in CPM1 GPIO library.
X-Git-Tag: v2.6.28-rc1~569^2~59^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f1eaf16a9e843aa915b86594b60ec6cd66c9eac7;p=pandora-kernel.git

powerpc/cpm1: Fix race condition in CPM1 GPIO library.

The CPM1 GPIO library code uses the non thread-safe clrbits32/setbits32
macros. This patch protects them with a spinlock.

Based on the CPM2 patch from Laurent Pinchart <laurentp@cse-semaphore.com>,
commit 639d64456e20cbfc866b18dc03cf9f9babc9c7cd.

Signed-off-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---

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