linux-kernel - [PATCH v2] regulator: core: Add label to collate of_node

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 15 Aug 2019 11:07:04 +0530
From:   Nishka Dasgupta <nishkadg.linux@...il.com>
To:     lgirdwood@...il.com, broonie@...nel.org,
        linux-kernel@...r.kernel.org
Cc:     Nishka Dasgupta <nishkadg.linux@...il.com>
Subject: [PATCH v2] regulator: core: Add label to collate of_node_put() statements

In function of_get_child_regulator(), the loop for_each_child_of_node()
contains two mid-loop return statements, each preceded by a statement
putting child. In order to reduce this repetition, create a new label,
err_node_put, that puts child and then returns the required value;
edit the mid-loop return blocks to instead go to this new label.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@...il.com>
---
Changes in v2:
- Submit this as a separate patch instead of updating a previous patch.

 drivers/regulator/core.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 7a5d52948703..4a27a46ec6e7 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -380,16 +380,17 @@ static struct device_node *of_get_child_regulator(struct device_node *parent,
 
 		if (!regnode) {
 			regnode = of_get_child_regulator(child, prop_name);
-			if (regnode) {
-				of_node_put(child);
-				return regnode;
-			}
+			if (regnode)
+				goto err_node_put;
 		} else {
-			of_node_put(child);
-			return regnode;
+			goto err_node_put;
 		}
 	}
 	return NULL;
+
+err_node_put:
+	of_node_put(child);
+	return regnode;
 }
 
 /**
-- 
2.19.1