linux-kernel - [PATCH 1/3]synchronize device shutdown

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Message-Id: <1231743399.5867.50.camel@sli10-desk.sh.intel.com>
Date:	Mon, 12 Jan 2009 14:56:39 +0800
From:	Shaohua Li <shaohua.li@...el.com>
To:	lkml <linux-kernel@...r.kernel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Arjan van de Ven <arjan@...radead.org>
Subject: [PATCH 1/3]synchronize device shutdown

synchronize all tasks submitted by .shutdown

Signed-off-by: Shaohua Li <shaohua.li@...el.com>
---
 drivers/base/core.c |    2 ++
 1 file changed, 2 insertions(+)

Index: linux/drivers/base/core.c
===================================================================
--- linux.orig/drivers/base/core.c	2009-01-12 14:39:07.000000000 +0800
+++ linux/drivers/base/core.c	2009-01-12 14:40:45.000000000 +0800
@@ -22,6 +22,7 @@
 #include <linux/kallsyms.h>
 #include <linux/semaphore.h>
 #include <linux/mutex.h>
+#include <linux/async.h>
 
 #include "base.h"
 #include "power/power.h"
@@ -1618,4 +1619,5 @@ void device_shutdown(void)
 	kobject_put(sysfs_dev_char_kobj);
 	kobject_put(sysfs_dev_block_kobj);
 	kobject_put(dev_kobj);
+	async_synchronize_full();
 }


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