ACPI: fixes a false alarm from lockdep

fixes a false alarm from lockdep, as acpi hotplug workqueue waits other
workqueues.
http://bugzilla.kernel.org/show_bug.cgi?id=14553
https://bugzilla.kernel.org/show_bug.cgi?id=15521

Original-patch-from: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 8e6d8665f0ae..900da68fbb5e 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -758,7 +758,14 @@ static acpi_status __acpi_os_execute(acpi_execute_type type,
         queue = hp ? kacpi_hotplug_wq :
                 (type == OSL_NOTIFY_HANDLER ? kacpi_notify_wq : kacpid_wq);
         dpc->wait = hp ? 1 : 0;
-        INIT_WORK(&dpc->work, acpi_os_execute_deferred);
+
+        if (queue == kacpi_hotplug_wq)
+                INIT_WORK(&dpc->work, acpi_os_execute_deferred);
+        else if (queue == kacpi_notify_wq)
+                INIT_WORK(&dpc->work, acpi_os_execute_deferred);
+        else
+                INIT_WORK(&dpc->work, acpi_os_execute_deferred);
+
         ret = queue_work(queue, &dpc->work);
 
         if (!ret) {