linux-kernel - [PATCH] [27/139] PM / Hibernate: Fix PM_POST

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Date:	Tue,  1 Feb 2011 16:43:42 -0800 (PST)
From:	Andi Kleen <andi@...stfloor.org>
To:	tiwai@...e.de, rjw@...k.pl, gregkh@...e.de, ak@...ux.intel.com,
	linux-kernel@...r.kernel.org, stable@...nel.org
Subject: [PATCH] [27/139] PM / Hibernate: Fix PM_POST_* notification with user-space suspend

2.6.35-longterm review patch.  If anyone has any objections, please let me know.

------------------
From: Takashi Iwai <tiwai@...e.de>

commit 1497dd1d29c6a53fcd3c80f7ac8d0e0239e7389e upstream.

The user-space hibernation sends a wrong notification after the image
restoration because of thinko for the file flag check.  RDONLY
corresponds to hibernation and WRONLY to restoration, confusingly.

Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
Signed-off-by: Andi Kleen <ak@...ux.intel.com>

---
 kernel/power/user.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6.35.y/kernel/power/user.c
===================================================================
--- linux-2.6.35.y.orig/kernel/power/user.c
+++ linux-2.6.35.y/kernel/power/user.c
@@ -137,7 +137,7 @@ static int snapshot_release(struct inode
 	free_all_swap_pages(data->swap);
 	if (data->frozen)
 		thaw_processes();
-	pm_notifier_call_chain(data->mode == O_WRONLY ?
+	pm_notifier_call_chain(data->mode == O_RDONLY ?
 			PM_POST_HIBERNATION : PM_POST_RESTORE);
 	atomic_inc(&snapshot_device_available);
 
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