From: Javier Carrasco Date: Fri, 3 May 2024 17:52:32 +0000 (+0200) Subject: cpufreq: sun50i: fix memory leak in dt_has_supported_hw() X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=6282fba6abd7c3c8896c239cc8aa9ec45edcb97b;p=linux.git cpufreq: sun50i: fix memory leak in dt_has_supported_hw() The for_each_child_of_node() loop does not decrement the child node refcount before the break instruction, even though the node is no longer required. This can be avoided with the new for_each_child_of_node_scoped() macro that removes the need for any of_node_put(). Fixes: fa5aec9561cf ("cpufreq: sun50i: Add support for opp_supported_hw") Signed-off-by: Javier Carrasco Reviewed-by: Andre Przywara Signed-off-by: Viresh Kumar --- diff --git a/drivers/cpufreq/sun50i-cpufreq-nvmem.c b/drivers/cpufreq/sun50i-cpufreq-nvmem.c index 0b882765cd66..ef83e4bf2639 100644 --- a/drivers/cpufreq/sun50i-cpufreq-nvmem.c +++ b/drivers/cpufreq/sun50i-cpufreq-nvmem.c @@ -131,7 +131,7 @@ static const struct of_device_id cpu_opp_match_list[] = { static bool dt_has_supported_hw(void) { bool has_opp_supported_hw = false; - struct device_node *np, *opp; + struct device_node *np; struct device *cpu_dev; cpu_dev = get_cpu_device(0); @@ -142,7 +142,7 @@ static bool dt_has_supported_hw(void) if (!np) return false; - for_each_child_of_node(np, opp) { + for_each_child_of_node_scoped(np, opp) { if (of_find_property(opp, "opp-supported-hw", NULL)) { has_opp_supported_hw = true; break;