From d3c1e33f5c8670ca4512d17bf712ec946eab20ea Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sat, 23 Feb 2019 14:20:41 +0100 Subject: [PATCH] cpufreq: ap806: add missing of_node_put after of_device_is_available Add an of_node_put when a tested device node is not available. The semantic patch that fixes this problem is as follows (http://coccinelle.lip6.fr): // @@ identifier f; local idexpression e; expression x; @@ e = f(...); ... when != of_node_put(e) when != x = e when != e = x when any if (<+...of_device_is_available(e)...+>) { ... when != of_node_put(e) ( return e; | + of_node_put(e); return ...; ) } // Fixes: f525a670533d9 ("cpufreq: ap806: add cpufreq driver for Armada 8K") Signed-off-by: Julia Lawall Signed-off-by: Viresh Kumar --- drivers/cpufreq/armada-8k-cpufreq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/cpufreq/armada-8k-cpufreq.c b/drivers/cpufreq/armada-8k-cpufreq.c index 8a5ddb93fc58..b3f4bd647e9b 100644 --- a/drivers/cpufreq/armada-8k-cpufreq.c +++ b/drivers/cpufreq/armada-8k-cpufreq.c @@ -128,8 +128,10 @@ static int __init armada_8k_cpufreq_init(void) struct cpumask cpus; node = of_find_compatible_node(NULL, NULL, "marvell,ap806-cpu-clock"); - if (!node || !of_device_is_available(node)) + if (!node || !of_device_is_available(node)) { + of_node_put(node); return -ENODEV; + } nb_cpus = num_possible_cpus(); freq_tables = kcalloc(nb_cpus, sizeof(*freq_tables), GFP_KERNEL); -- 2.30.2