From: Lv Zheng <lv.zheng@intel.com>
Date: Tue, 2 Dec 2014 00:56:55 +0000 (+0800)
Subject: ACPICA: Events: Always modify GPE registers under the GPE lock
X-Git-Tag: omap-for-v3.19/fixes-rc1~136^2~7^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7dd882195695871d6da046de036214d32f09e2ea;p=pandora-kernel.git

ACPICA: Events: Always modify GPE registers under the GPE lock

It is reported that there are pieces of code invoking acpi_ev_finish_gpe()
without holding acpi_gbl_gpe_lock. Since this function will modify GPE
register values, there could be races breaking the register modification
process.

This patch fixes this issue. Lv Zheng.

Reported-by: Joe Liu <joe.liu@apple.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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