tree 6c5caddb00117c566dd5c4a7e9eb654dfdaa6b10
parent 1a9314a0f6f71cf13ddf9e58f1d4f507a5265056
author Jochen Friedrich <jochen@scram.de> 1219833145 +0200
committer Kumar Gala <galak@kernel.crashing.org> 1221590604 -0500

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>