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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Neil Armstrong <narmstrong@baylibre.com>
Cc: linux-pwm@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] pwm: omap-dmtimer: Potential NULL dereference on error
Date: Mon, 21 Dec 2015 13:13:04 +0000	[thread overview]
Message-ID: <20151221131304.GA27286@mwanda> (raw)

"omap" is NULL so we can't dereference it.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
It's weird that request_by_node() and free() are allocate/free pairs.
Also this was Thierry's last minute tweaks mentioned in the changelog,
Neil Armstrong is innocent.  :P

diff --git a/drivers/pwm/pwm-omap-dmtimer.c b/drivers/pwm/pwm-omap-dmtimer.c
index c453b33..826634e 100644
--- a/drivers/pwm/pwm-omap-dmtimer.c
+++ b/drivers/pwm/pwm-omap-dmtimer.c
@@ -243,7 +243,7 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev)
 
 	omap = devm_kzalloc(&pdev->dev, sizeof(*omap), GFP_KERNEL);
 	if (!omap) {
-		omap->pdata->free(dm_timer);
+		pdata->free(dm_timer);
 		return -ENOMEM;
 	}
 

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Neil Armstrong <narmstrong@baylibre.com>
Cc: linux-pwm@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] pwm: omap-dmtimer: Potential NULL dereference on error
Date: Mon, 21 Dec 2015 16:13:04 +0300	[thread overview]
Message-ID: <20151221131304.GA27286@mwanda> (raw)

"omap" is NULL so we can't dereference it.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
It's weird that request_by_node() and free() are allocate/free pairs.
Also this was Thierry's last minute tweaks mentioned in the changelog,
Neil Armstrong is innocent.  :P

diff --git a/drivers/pwm/pwm-omap-dmtimer.c b/drivers/pwm/pwm-omap-dmtimer.c
index c453b33..826634e 100644
--- a/drivers/pwm/pwm-omap-dmtimer.c
+++ b/drivers/pwm/pwm-omap-dmtimer.c
@@ -243,7 +243,7 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev)
 
 	omap = devm_kzalloc(&pdev->dev, sizeof(*omap), GFP_KERNEL);
 	if (!omap) {
-		omap->pdata->free(dm_timer);
+		pdata->free(dm_timer);
 		return -ENOMEM;
 	}
 

             reply	other threads:[~2015-12-21 13:13 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-21 13:13 Dan Carpenter [this message]
2015-12-21 13:13 ` [patch] pwm: omap-dmtimer: Potential NULL dereference on error Dan Carpenter
2016-01-04  8:00 ` Thierry Reding
2016-01-04  8:00   ` Thierry Reding

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