author malattia@linux.it <malattia@linux.it> 1177769976 +0900
committer Len Brown <len.brown@intel.com> 1177812353 -0400

sony-laptop: add locking on accesses to the ioport and global vars

Better avoid having ioport commands mixing and global variables reading/writing.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
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