The patch below does not apply to the 6.1-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 73cb5f6eafb0ac7aea8cdeb8ff12981aa741d8fb # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2026010514-cahoots-scholar-954d@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 73cb5f6eafb0ac7aea8cdeb8ff12981aa741d8fb Mon Sep 17 00:00:00 2001 From: Wentao Liang vulab@iscas.ac.cn Date: Thu, 11 Dec 2025 04:02:52 +0000 Subject: [PATCH] pmdomain: imx: Fix reference count leak in imx_gpc_probe()
of_get_child_by_name() returns a node pointer with refcount incremented. Use the __free() attribute to manage the pgc_node reference, ensuring automatic of_node_put() cleanup when pgc_node goes out of scope.
This eliminates the need for explicit error handling paths and avoids reference count leaks.
Fixes: 721cabf6c660 ("soc: imx: move PGC handling to a new GPC driver") Cc: stable@vger.kernel.org Signed-off-by: Wentao Liang vulab@iscas.ac.cn Reviewed-by: Frank Li Frank.Li@nxp.com Signed-off-by: Ulf Hansson ulf.hansson@linaro.org
diff --git a/drivers/pmdomain/imx/gpc.c b/drivers/pmdomain/imx/gpc.c index a34b260274f7..de695f1944ab 100644 --- a/drivers/pmdomain/imx/gpc.c +++ b/drivers/pmdomain/imx/gpc.c @@ -402,13 +402,12 @@ static int imx_gpc_old_dt_init(struct device *dev, struct regmap *regmap, static int imx_gpc_probe(struct platform_device *pdev) { const struct imx_gpc_dt_data *of_id_data = device_get_match_data(&pdev->dev); - struct device_node *pgc_node; + struct device_node *pgc_node __free(device_node) + = of_get_child_by_name(pdev->dev.of_node, "pgc"); struct regmap *regmap; void __iomem *base; int ret;
- pgc_node = of_get_child_by_name(pdev->dev.of_node, "pgc"); - /* bail out if DT too old and doesn't provide the necessary info */ if (!of_property_present(pdev->dev.of_node, "#power-domain-cells") && !pgc_node)