linux-kernel - [PATCH] watchdog: da9052: Fix invalid free of devm

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Date:	Thu, 22 Nov 2012 10:13:04 +0530
From:	Tushar Behera <tushar.behera@...aro.org>
To:	linux-kernel@...r.kernel.org, linux-watchdog@...r.kernel.org
Cc:	wim@...ana.be, patches@...aro.org, Anthony.Olech@...semi.com
Subject: [PATCH] watchdog: da9052: Fix invalid free of devm_ allocated data

It is not required to free devm_ allocated data. Since kref_put
needs a valid release function, da9052_wdt_release_resources()
is not deleted.

Fixes following warning.
drivers/watchdog/da9052_wdt.c:59:1-6: WARNING: invalid free of
devm_ allocated data

Signed-off-by: Tushar Behera <tushar.behera@...aro.org>
---
 drivers/watchdog/da9052_wdt.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/drivers/watchdog/da9052_wdt.c b/drivers/watchdog/da9052_wdt.c
index f7abbae..20071de 100644
--- a/drivers/watchdog/da9052_wdt.c
+++ b/drivers/watchdog/da9052_wdt.c
@@ -53,10 +53,6 @@ static const struct {
 
 static void da9052_wdt_release_resources(struct kref *r)
 {
-	struct da9052_wdt_data *driver_data =
-		container_of(r, struct da9052_wdt_data, kref);
-
-	kfree(driver_data);
 }
 
 static int da9052_wdt_set_timeout(struct watchdog_device *wdt_dev,
-- 
1.7.4.1

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