From 9c921c22a7f33397a6774d7fa076db9b6a0fd669 Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Thu, 30 Jun 2011 11:34:12 +0800
Subject: [PATCH] ACPI / Battery: Resolve the race condition in the
 sysfs_remove_battery()

Use battery->lock in sysfs_remove_battery() to make
checking, removing, and clearing bat.dev atomic.
This is necessary because sysfs_remove_battery() may
be invoked concurrently from different paths.

    https://bugzilla.kernel.org/show_bug.cgi?id=35642

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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