From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S934528AbeEWTjH (ORCPT <rfc822;w@1wt.eu>);
        Wed, 23 May 2018 15:39:07 -0400
Received: from mail2-relais-roc.national.inria.fr ([192.134.164.83]:30112 "EHLO
        mail2-relais-roc.national.inria.fr" rhost-flags-OK-OK-OK-OK)
        by vger.kernel.org with ESMTP id S934286AbeEWTjD (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Wed, 23 May 2018 15:39:03 -0400
X-IronPort-AV: E=Sophos;i="5.49,434,1520895600";
   d="scan'208";a="328129392"
From: Julia Lawall <Julia.Lawall@lip6.fr>
To: Santosh Shilimkar <ssantosh@kernel.org>
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/5] soc: ti: knav_dma: add missing of_node_put
Date: Wed, 23 May 2018 21:07:14 +0200
Message-Id: <1527102436-13447-4-git-send-email-Julia.Lawall@lip6.fr>
X-Mailer: git-send-email 1.9.1
In-Reply-To: <1527102436-13447-1-git-send-email-Julia.Lawall@lip6.fr>
References: <1527102436-13447-1-git-send-email-Julia.Lawall@lip6.fr>
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

The device node iterators perform an of_node_get on each iteration, so a
jump out of the loop requires an of_node_put.

The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):

// <smpl>
@@
expression root,e;
local idexpression child;
iterator name for_each_child_of_node;
@@

 for_each_child_of_node(root, child) {
   ... when != of_node_put(child)
       when != e = child
+  of_node_put(child);
?  break;
   ...
}
... when != child
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
 drivers/soc/ti/knav_dma.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soc/ti/knav_dma.c b/drivers/soc/ti/knav_dma.c
index 224d7dd..bda3173 100644
--- a/drivers/soc/ti/knav_dma.c
+++ b/drivers/soc/ti/knav_dma.c
@@ -768,6 +768,7 @@ static int knav_dma_probe(struct platform_device *pdev)
 		ret = dma_init(node, child);
 		if (ret) {
 			dev_err(&pdev->dev, "init failed with %d\n", ret);
+			of_node_put(child);
 			break;
 		}
 	}

From mboxrd@z Thu Jan  1 00:00:00 1970
From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Wed, 23 May 2018 19:07:14 +0000
Subject: [PATCH 3/5] soc: ti: knav_dma: add missing of_node_put
Message-Id: <1527102436-13447-4-git-send-email-Julia.Lawall@lip6.fr>
List-Id: <kernel-janitors.vger.kernel.org>
References: <1527102436-13447-1-git-send-email-Julia.Lawall@lip6.fr>
In-Reply-To: <1527102436-13447-1-git-send-email-Julia.Lawall@lip6.fr>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: linux-arm-kernel@lists.infradead.org

The device node iterators perform an of_node_get on each iteration, so a
jump out of the loop requires an of_node_put.

The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):

// <smpl>
@@
expression root,e;
local idexpression child;
iterator name for_each_child_of_node;
@@

 for_each_child_of_node(root, child) {
   ... when != of_node_put(child)
       when != e = child
+  of_node_put(child);
?  break;
   ...
}
... when != child
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
 drivers/soc/ti/knav_dma.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soc/ti/knav_dma.c b/drivers/soc/ti/knav_dma.c
index 224d7dd..bda3173 100644
--- a/drivers/soc/ti/knav_dma.c
+++ b/drivers/soc/ti/knav_dma.c
@@ -768,6 +768,7 @@ static int knav_dma_probe(struct platform_device *pdev)
 		ret = dma_init(node, child);
 		if (ret) {
 			dev_err(&pdev->dev, "init failed with %d\n", ret);
+			of_node_put(child);
 			break;
 		}
 	}


From mboxrd@z Thu Jan  1 00:00:00 1970
From: Julia.Lawall@lip6.fr (Julia Lawall)
Date: Wed, 23 May 2018 21:07:14 +0200
Subject: [PATCH 3/5] soc: ti: knav_dma: add missing of_node_put
In-Reply-To: <1527102436-13447-1-git-send-email-Julia.Lawall@lip6.fr>
References: <1527102436-13447-1-git-send-email-Julia.Lawall@lip6.fr>
Message-ID: <1527102436-13447-4-git-send-email-Julia.Lawall@lip6.fr>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

The device node iterators perform an of_node_get on each iteration, so a
jump out of the loop requires an of_node_put.

The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):

// <smpl>
@@
expression root,e;
local idexpression child;
iterator name for_each_child_of_node;
@@

 for_each_child_of_node(root, child) {
   ... when != of_node_put(child)
       when != e = child
+  of_node_put(child);
?  break;
   ...
}
... when != child
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
 drivers/soc/ti/knav_dma.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soc/ti/knav_dma.c b/drivers/soc/ti/knav_dma.c
index 224d7dd..bda3173 100644
--- a/drivers/soc/ti/knav_dma.c
+++ b/drivers/soc/ti/knav_dma.c
@@ -768,6 +768,7 @@ static int knav_dma_probe(struct platform_device *pdev)
 		ret = dma_init(node, child);
 		if (ret) {
 			dev_err(&pdev->dev, "init failed with %d\n", ret);
+			of_node_put(child);
 			break;
 		}
 	}