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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Wolfgang Grandegger <wg@grandegger.com>,
	George Cherian <george.cherian@ti.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>,
	Grant Likely <grant.likely@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Thor Thayer <tthayer@altera.com>, Pavel Machek <pavel@denx.de>,
	Mugunthan V N <mugunthanvnm@ti.com>,
	"Lad, Prabhakar" <prabhakar.csengg@gmail.com>,
	Wolfram Sang <wsa@sang-engineering.com>,
	linux-can@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] can: c_can: checking IS_ERR() instead of NULL
Date: Fri, 01 Aug 2014 08:53:44 +0000	[thread overview]
Message-ID: <20140801085344.GA31702@mwanda> (raw)

devm_ioremap() returns NULL on error, not an ERR_PTR().

Fixes: 33cf75656923 ('can: c_can_platform: Fix raminit, use devm_ioremap() instead of devm_ioremap_resource()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
This will need to go to -stable because the patch which introduces the
bug is going to be pushed to -stable.

diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c
index 5dede6e..109cb44 100644
--- a/drivers/net/can/c_can/c_can_platform.c
+++ b/drivers/net/can/c_can/c_can_platform.c
@@ -280,7 +280,7 @@ static int c_can_plat_probe(struct platform_device *pdev)
 
 		priv->raminit_ctrlreg = devm_ioremap(&pdev->dev, res->start,
 						     resource_size(res));
-		if (IS_ERR(priv->raminit_ctrlreg) || priv->instance < 0)
+		if (!priv->raminit_ctrlreg || priv->instance < 0)
 			dev_info(&pdev->dev, "control memory is not used for raminit\n");
 		else
 			priv->raminit = c_can_hw_raminit_ti;

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Wolfgang Grandegger <wg@grandegger.com>,
	George Cherian <george.cherian@ti.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>,
	Grant Likely <grant.likely@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Thor Thayer <tthayer@altera.com>, Pavel Machek <pavel@denx.de>,
	Mugunthan V N <mugunthanvnm@ti.com>,
	"Lad, Prabhakar" <prabhakar.csengg@gmail.com>,
	Wolfram Sang <wsa@sang-engineering.com>,
	linux-can@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] can: c_can: checking IS_ERR() instead of NULL
Date: Fri, 1 Aug 2014 11:53:44 +0300	[thread overview]
Message-ID: <20140801085344.GA31702@mwanda> (raw)

devm_ioremap() returns NULL on error, not an ERR_PTR().

Fixes: 33cf75656923 ('can: c_can_platform: Fix raminit, use devm_ioremap() instead of devm_ioremap_resource()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
This will need to go to -stable because the patch which introduces the
bug is going to be pushed to -stable.

diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c
index 5dede6e..109cb44 100644
--- a/drivers/net/can/c_can/c_can_platform.c
+++ b/drivers/net/can/c_can/c_can_platform.c
@@ -280,7 +280,7 @@ static int c_can_plat_probe(struct platform_device *pdev)
 
 		priv->raminit_ctrlreg = devm_ioremap(&pdev->dev, res->start,
 						     resource_size(res));
-		if (IS_ERR(priv->raminit_ctrlreg) || priv->instance < 0)
+		if (!priv->raminit_ctrlreg || priv->instance < 0)
 			dev_info(&pdev->dev, "control memory is not used for raminit\n");
 		else
 			priv->raminit = c_can_hw_raminit_ti;

             reply	other threads:[~2014-08-01  8:53 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-01  8:53 Dan Carpenter [this message]
2014-08-01  8:53 ` [patch] can: c_can: checking IS_ERR() instead of NULL Dan Carpenter
2014-08-01  9:01 ` Marc Kleine-Budde
2014-08-01  9:01   ` Marc Kleine-Budde
2014-08-01  9:13   ` Dan Carpenter
2014-08-01  9:13     ` Dan Carpenter
2014-08-01  9:15     ` Marc Kleine-Budde
2014-08-01  9:15       ` Marc Kleine-Budde
2014-08-01 18:16 ` Wolfram Sang
2014-08-01 18:16   ` Wolfram Sang

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