From: Nishka Dasgupta <nishkadg.linux@gmail.com>
To: lgirdwood@gmail.com, broonie@kernel.org, linux-kernel@vger.kernel.org
Cc: Nishka Dasgupta <nishkadg.linux@gmail.com>
Subject: [PATCH] regulator: core: Add of_node_put() before return
Date: Sun, 4 Aug 2019 21:50:23 +0530 [thread overview]
Message-ID: <20190804162023.5673-1-nishkadg.linux@gmail.com> (raw)
Each iteration of for_each_child_of_node puts the previous node, but in
the case of a return from the middle of the loop, there is no put, thus
causing a memory leak. Hence add an of_node_put before the return in
two places.
Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
---
drivers/regulator/core.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index e0c0cf462004..7a5d52948703 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -380,9 +380,12 @@ static struct device_node *of_get_child_regulator(struct device_node *parent,
if (!regnode) {
regnode = of_get_child_regulator(child, prop_name);
- if (regnode)
+ if (regnode) {
+ of_node_put(child);
return regnode;
+ }
} else {
+ of_node_put(child);
return regnode;
}
}
--
2.19.1
next reply other threads:[~2019-08-04 16:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-04 16:20 Nishka Dasgupta [this message]
2019-08-05 12:30 ` Markus Elfring
2019-08-05 16:10 ` Applied "regulator: core: Add of_node_put() before return" to the regulator tree Mark Brown
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