Re: [PATCH] clk: versatile: Add of_node_put() before return statement

From: Linus Walleij
Date: Sun Aug 30 2020 - 06:07:38 EST


On Sat, Aug 29, 2020 at 7:57 PM Sumera Priyadarsini
<sylphrenadin@xxxxxxxxx> wrote:

> 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 clk-impd1.c by inserting
> of_node_put() before a return statement.
>
> Issue found with Coccinelle.
>
> Signed-off-by: Sumera Priyadarsini <sylphrenadin@xxxxxxxxx>

Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>

Yours,
Linus Walleij