[patch 2/2] iommu/mediatek: checking for IS_ERR() instead of NULL

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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>,
	Yong Wu <yong.wu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
Cc: Matthias Brugger
	<matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
	linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [patch 2/2] iommu/mediatek: checking for IS_ERR() instead of NULL
Date: Wed, 02 Mar 2016 10:10:27 +0000	[thread overview]
Message-ID: <20160302101027.GG5533@mwanda> (raw)

of_platform_device_create() returns NULL on error, it never returns
error pointers.

Fixes: 0df4fabe208d ('iommu/mediatek: Add mt8173 IOMMU driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 1a4022c..4682da4 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -628,7 +628,7 @@ static int mtk_iommu_probe(struct platform_device *pdev)
 			plarbdev = of_platform_device_create(
 						larbnode, NULL,
 						platform_bus_type.dev_root);
-			if (IS_ERR(plarbdev))
+			if (!plarbdev)
 				return -EPROBE_DEFER;
 		}
 		data->smi_imu.larb_imu[i].dev = &plarbdev->dev;
@@ -721,8 +721,8 @@ static int mtk_iommu_init_fn(struct device_node *np)
 	struct platform_device *pdev;
 
 	pdev = of_platform_device_create(np, NULL, platform_bus_type.dev_root);
-	if (IS_ERR(pdev))
-		return PTR_ERR(pdev);
+	if (!pdev)
+		return -ENOMEM;
 
 	ret = platform_driver_register(&mtk_iommu_driver);
 	if (ret) {

WARNING: multiple messages have this Message-ID (diff)

From: Dan Carpenter <dan.carpenter-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
To: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>,
	Yong Wu <yong.wu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
Cc: Matthias Brugger
	<matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
	linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [patch 2/2] iommu/mediatek: checking for IS_ERR() instead of NULL
Date: Wed, 2 Mar 2016 13:10:27 +0300	[thread overview]
Message-ID: <20160302101027.GG5533@mwanda> (raw)

of_platform_device_create() returns NULL on error, it never returns
error pointers.

Fixes: 0df4fabe208d ('iommu/mediatek: Add mt8173 IOMMU driver')
Signed-off-by: Dan Carpenter <dan.carpenter-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 1a4022c..4682da4 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -628,7 +628,7 @@ static int mtk_iommu_probe(struct platform_device *pdev)
 			plarbdev = of_platform_device_create(
 						larbnode, NULL,
 						platform_bus_type.dev_root);
-			if (IS_ERR(plarbdev))
+			if (!plarbdev)
 				return -EPROBE_DEFER;
 		}
 		data->smi_imu.larb_imu[i].dev = &plarbdev->dev;
@@ -721,8 +721,8 @@ static int mtk_iommu_init_fn(struct device_node *np)
 	struct platform_device *pdev;
 
 	pdev = of_platform_device_create(np, NULL, platform_bus_type.dev_root);
-	if (IS_ERR(pdev))
-		return PTR_ERR(pdev);
+	if (!pdev)
+		return -ENOMEM;
 
 	ret = platform_driver_register(&mtk_iommu_driver);
 	if (ret) {

WARNING: multiple messages have this Message-ID (diff)

From: Dan Carpenter <dan.carpenter@oracle.com>
To: Joerg Roedel <joro@8bytes.org>, Yong Wu <yong.wu@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>,
	iommu@lists.linux-foundation.org,
	linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org,
	kernel-janitors@vger.kernel.org
Subject: [patch 2/2] iommu/mediatek: checking for IS_ERR() instead of NULL
Date: Wed, 2 Mar 2016 13:10:27 +0300	[thread overview]
Message-ID: <20160302101027.GG5533@mwanda> (raw)

of_platform_device_create() returns NULL on error, it never returns
error pointers.

Fixes: 0df4fabe208d ('iommu/mediatek: Add mt8173 IOMMU driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 1a4022c..4682da4 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -628,7 +628,7 @@ static int mtk_iommu_probe(struct platform_device *pdev)
 			plarbdev = of_platform_device_create(
 						larbnode, NULL,
 						platform_bus_type.dev_root);
-			if (IS_ERR(plarbdev))
+			if (!plarbdev)
 				return -EPROBE_DEFER;
 		}
 		data->smi_imu.larb_imu[i].dev = &plarbdev->dev;
@@ -721,8 +721,8 @@ static int mtk_iommu_init_fn(struct device_node *np)
 	struct platform_device *pdev;
 
 	pdev = of_platform_device_create(np, NULL, platform_bus_type.dev_root);
-	if (IS_ERR(pdev))
-		return PTR_ERR(pdev);
+	if (!pdev)
+		return -ENOMEM;
 
 	ret = platform_driver_register(&mtk_iommu_driver);
 	if (ret) {

next             reply	other threads:[~2016-03-02 10:10 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-02 10:10 Dan Carpenter [this message]
2016-03-02 10:10 ` [patch 2/2] iommu/mediatek: checking for IS_ERR() instead of NULL Dan Carpenter
2016-03-02 10:10 ` Dan Carpenter
2016-03-02 14:49 ` Joerg Roedel
2016-03-02 14:49   ` Joerg Roedel
2016-03-02 14:49   ` Joerg Roedel

find likely ancestor, descendant, or conflicting patches for this message:
( dfblob:1a4022c dfblob:4682da4 dfblob:1a4022c dfblob:4682da4
dfblob:1a4022c dfblob:4682da4 )
 OR (
bs:"[patch 2/2] iommu/mediatek: checking for IS_ERR() instead of NULL" )
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