From: Shaohua Li <shaohua.li@intel.com>
Date: Tue, 7 Apr 2009 02:24:29 +0000 (+0800)
Subject: ACPI: convert acpi_device_lock spinlock to mutex
X-Git-Tag: v2.6.30-rc2~113^2^5~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9090589d87506c578ea1523ffd7ae7fd9424fb28;p=pandora-kernel.git

ACPI: convert acpi_device_lock spinlock to mutex

Convert acpi_device_lock to a mutex to avoid
a potential race upon access to /proc/acpi/wakeup

Delete the lock entirely in wakeup.c
since it is not necessary (and can not sleep)

Found-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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