From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 29 Apr 2008 06:34:42 +0000 (-0400)
Subject: flush kacpi_notify_wq before removing notify handler
X-Git-Tag: v2.6.26-rc1~101^2~1^3
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2f67a0695dc389247c05041b05d2a2b06fc102a3;p=linux-2.6

flush kacpi_notify_wq before removing notify handler

Flush kacpi_notify_wq before notify handler is removed,
this can fix a bug which the deferred notify handler is executed
after the notify_handler has already been removed.
http://bugzilla.kernel.org/show_bug.cgi?id=9772

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index a498a6cc68..235a138688 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -742,6 +742,7 @@ EXPORT_SYMBOL(acpi_os_execute);
 void acpi_os_wait_events_complete(void *context)
 {
 	flush_workqueue(kacpid_wq);
+	flush_workqueue(kacpi_notify_wq);
 }
 
 EXPORT_SYMBOL(acpi_os_wait_events_complete);