linux-kernel - [PATCH] watchdog: Fix rio watchdog probe function

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Date:	Sat, 10 Oct 2009 12:03:28 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	David Miller <davem@...emloft.net>
cc:	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] watchdog: Fix rio watchdog probe function

After sucessfully registering the misc device the driver iounmaps the
hardware registers and kfree's the device data structure. Ouch !

This was introduced with commit e42311d75 (riowatchdog: Convert to
pure OF driver) and went unnoticed for more than a year :)

Return success instead of dropping into the error cleanup code path.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: David S. Miller <davem@...emloft.net>
---
 drivers/watchdog/riowd.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6-tip/drivers/watchdog/riowd.c
===================================================================
--- linux-2.6-tip.orig/drivers/watchdog/riowd.c
+++ linux-2.6-tip/drivers/watchdog/riowd.c
@@ -206,7 +206,7 @@ static int __devinit riowd_probe(struct 
 
 	dev_set_drvdata(&op->dev, p);
 	riowd_device = p;
-	err = 0;
+	return 0;
 
 out_iounmap:
 	of_iounmap(&op->resource[0], p->regs, 2);
--
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