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(parent: 1a9314a) | patch
powerpc/cpm1: Fix race condition in CPM1 GPIO library.
authorJochen Friedrich <jochen@scram.de>
Wed, 27 Aug 2008 10:32:25 +0000 (12:32 +0200)
committerKumar Gala <galak@kernel.crashing.org>
Tue, 16 Sep 2008 18:43:24 +0000 (13:43 -0500)
commitf1eaf16a9e843aa915b86594b60ec6cd66c9eac7
tree6c5caddb00117c566dd5c4a7e9eb654dfdaa6b10tree | snapshot (tar.gz zip)
parent1a9314a0f6f71cf13ddf9e58f1d4f507a5265056commit | diff
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>
arch/powerpc/sysdev/cpm1.c diff | blob | blame | history