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clk: versatile: Add of_node_put() before return statement 

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@gmail.com>
Link: https://lore.kernel.org/r/20200829175704.GA10998@Kaladin
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Sumera Priyadarsini 2020-08-29 23:27:04 +05:30 committed by Stephen Boyd
parent 73a203b0dc
commit da9c43dc0e
1 changed files with 3 additions and 1 deletions
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4
drivers/clk/versatile/clk-impd1.c
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@ -109,8 +109,10 @@ static int integrator_impd1_clk_probe(struct platform_device *pdev)
for_each_available_child_of_node(np, child) {
ret = integrator_impd1_clk_spawn(dev, np, child);
if (ret)
if (ret) {
of_node_put(child);
break;
}
}
return ret;