From: Miaoqian Lin Date: Mon, 23 May 2022 14:02:05 +0000 (+0400) Subject: mtd: maps: Fix refcount leak in of_flash_probe_versatile X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=4d67c8f74d804b20febf716ec96e9a475457ec60;p=linux.git mtd: maps: Fix refcount leak in of_flash_probe_versatile [ Upstream commit 33ec82a6d2b119938f26e5c8040ed5d92378eb54 ] of_find_matching_node_and_match() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. Fixes: b0afd44bc192 ("mtd: physmap_of: add a hook for Versatile write protection") Signed-off-by: Miaoqian Lin Reviewed-by: Linus Walleij Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20220523140205.48625-1-linmq006@gmail.com Signed-off-by: Sasha Levin --- diff --git a/drivers/mtd/maps/physmap-versatile.c b/drivers/mtd/maps/physmap-versatile.c index ad7cd9cfaee04..297a509573567 100644 --- a/drivers/mtd/maps/physmap-versatile.c +++ b/drivers/mtd/maps/physmap-versatile.c @@ -207,6 +207,7 @@ int of_flash_probe_versatile(struct platform_device *pdev, versatile_flashprot = (enum versatile_flashprot)devid->data; rmap = syscon_node_to_regmap(sysnp); + of_node_put(sysnp); if (IS_ERR(rmap)) return PTR_ERR(rmap);