ACPI: make ACPI button funcs no-ops if not built in
authorJesse Barnes <jbarnes@virtuousgeek.org>
Tue, 15 Sep 2009 23:57:24 +0000 (16:57 -0700)
committerJesse Barnes <jbarnes@virtuousgeek.org>
Thu, 17 Sep 2009 21:48:23 +0000 (14:48 -0700)
Yakui pointed out that we don't properly no-op the ACPI button routines
if the button driver isn't built in.  This will cause problems if ACPI
is disabled, so provide stub functions in that case.

Reported-by: ykzhao <yakui.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

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