From 90c82941adf1986364e0f82c35cf59f2bf5f6a1d Mon Sep 17 00:00:00 2001 From: =?utf8?q?Andr=C3=A9=20Draszik?= Date: Thu, 16 Oct 2025 16:58:37 +0100 Subject: [PATCH] pmdomain: samsung: plug potential memleak during probe MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit of_genpd_add_provider_simple() could fail, in which case this code leaks the domain name, pd->pd.name. Use devm_kstrdup_const() to plug this leak. As a side-effect, we can simplify existing error handling. Fixes: c09a3e6c97f0 ("soc: samsung: pm_domains: Convert to regular platform driver") Cc: stable@vger.kernel.org Reviewed-by: Peter Griffin Reviewed-by: Krzysztof Kozlowski Signed-off-by: André Draszik Tested-by: Marek Szyprowski Signed-off-by: Ulf Hansson --- drivers/pmdomain/samsung/exynos-pm-domains.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/pmdomain/samsung/exynos-pm-domains.c b/drivers/pmdomain/samsung/exynos-pm-domains.c index 5d478bb37ad68..f53e1bd247980 100644 --- a/drivers/pmdomain/samsung/exynos-pm-domains.c +++ b/drivers/pmdomain/samsung/exynos-pm-domains.c @@ -92,13 +92,14 @@ static const struct of_device_id exynos_pm_domain_of_match[] = { { }, }; -static const char *exynos_get_domain_name(struct device_node *node) +static const char *exynos_get_domain_name(struct device *dev, + struct device_node *node) { const char *name; if (of_property_read_string(node, "label", &name) < 0) name = kbasename(node->full_name); - return kstrdup_const(name, GFP_KERNEL); + return devm_kstrdup_const(dev, name, GFP_KERNEL); } static int exynos_pd_probe(struct platform_device *pdev) @@ -115,15 +116,13 @@ static int exynos_pd_probe(struct platform_device *pdev) if (!pd) return -ENOMEM; - pd->pd.name = exynos_get_domain_name(np); + pd->pd.name = exynos_get_domain_name(dev, np); if (!pd->pd.name) return -ENOMEM; pd->base = of_iomap(np, 0); - if (!pd->base) { - kfree_const(pd->pd.name); + if (!pd->base) return -ENODEV; - } pd->pd.power_off = exynos_pd_power_off; pd->pd.power_on = exynos_pd_power_on; -- 2.47.3