linux-kernel - [PATCH] drivers/base/power: be more verbose in device_pm

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Date:	Fri,  4 Jun 2010 14:17:14 +0200
From:	Daniel Mack <daniel@...aq.de>
To:	linux-kernel@...r.kernel.org
Cc:	Daniel Mack <daniel@...aq.de>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Len Brown <len.brown@...el.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Magnus Damm <damm@...l.co.jp>,
	Alan Stern <stern@...land.harvard.edu>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	linux-pm@...ts.linux-foundation.org
Subject: [PATCH] drivers/base/power: be more verbose in device_pm_add()

If a parentless device was added during a PM transaction, developers
might want to know which device caused the troube. Hence, output the
kobject's name in this case.

Signed-off-by: Daniel Mack <daniel@...aq.de>
Cc: Rafael J. Wysocki <rjw@...k.pl>
Cc: Len Brown <len.brown@...el.com>
Cc: Greg Kroah-Hartman <gregkh@...e.de>
Cc: Magnus Damm <damm@...l.co.jp>
Cc: Alan Stern <stern@...land.harvard.edu>
Cc: Randy Dunlap <randy.dunlap@...cle.com>
Cc: linux-pm@...ts.linux-foundation.org
---
 drivers/base/power/main.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 941fcb8..9e9fe6a 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -98,7 +98,7 @@ void device_pm_add(struct device *dev)
 		 * transition is in progress in order to avoid leaving them
 		 * unhandled down the road
 		 */
-		dev_WARN(dev, "Parentless device registered during a PM transaction\n");
+		dev_WARN(dev, "Parentless device registered during a PM transaction: %s\n", kobject_name(&dev->kobj));
 	}
 
 	list_add_tail(&dev->power.entry, &dpm_list);
-- 
1.7.1

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