From: Sumera Priyadarsini Date: Sat, 29 Aug 2020 17:57:04 +0000 (+0530) Subject: clk: versatile: Add of_node_put() before return statement X-Git-Tag: v5.10.7~1575^2~5 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=da9c43dc0e2ec5c42a3d414e389feb30467000e2;p=platform%2Fkernel%2Flinux-rpi.git 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 Link: https://lore.kernel.org/r/20200829175704.GA10998@Kaladin Reviewed-by: Linus Walleij Signed-off-by: Stephen Boyd --- diff --git a/drivers/clk/versatile/clk-impd1.c b/drivers/clk/versatile/clk-impd1.c index ca79824..85c395d 100644 --- a/drivers/clk/versatile/clk-impd1.c +++ b/drivers/clk/versatile/clk-impd1.c @@ -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;