linux-kernel - Re: [PATCH] net: ocelot: Add of_node

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Message-Id: <20200824.180442.1290741945932081611.davem@davemloft.net>
Date:   Mon, 24 Aug 2020 18:04:42 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     sylphrenadin@...il.com
Cc:     Julia.Lawall@...6.fr, UNGLinuxDriver@...rochip.com,
        vladimir.oltean@....com, claudiu.manoil@....com,
        alexandre.belloni@...tlin.com, andrew@...n.ch,
        vivien.didelot@...il.com, f.fainelli@...il.com, kuba@...nel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: ocelot: Add of_node_put() before return statement

From: Sumera Priyadarsini <sylphrenadin@...il.com>
Date: Sun, 23 Aug 2020 19:22:45 +0530

> Every iteration of for_each_available_child_of_node() decrements
> the reference count of the previous node, however when control
> is transferred from the middle of the loop, as in the case of
> a return or break or goto, there is no decrement thus ultimately
> resulting in a memory leak.
> 
> Fix a potential memory leak in felix.c by inserting of_node_put()
> before the return statement.
> 
> Issue found with Coccinelle.
> 
> Signed-off-by: Sumera Priyadarsini <sylphrenadin@...il.com>

Applied.