From: Joe Hattori Date: Mon, 16 Dec 2024 07:49:23 +0000 (+0900) Subject: leds: netxbig: Fix an OF node reference leak in netxbig_leds_get_of_pdata() X-Git-Tag: v5.15.179~565 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0e833dc042b94f75c27997f18900d0560328ba6e;p=thirdparty%2Fkernel%2Fstable.git leds: netxbig: Fix an OF node reference leak in netxbig_leds_get_of_pdata() [ Upstream commit 0508316be63bb735f59bdc8fe4527cadb62210ca ] netxbig_leds_get_of_pdata() does not release the OF node obtained by of_parse_phandle() when of_find_device_by_node() fails. Add an of_node_put() call to fix the leak. This bug was found by an experimental static analysis tool that I am developing. Fixes: 9af512e81964 ("leds: netxbig: Convert to use GPIO descriptors") Signed-off-by: Joe Hattori Link: https://lore.kernel.org/r/20241216074923.628509-1-joe@pf.is.s.u-tokyo.ac.jp Signed-off-by: Lee Jones Signed-off-by: Sasha Levin --- diff --git a/drivers/leds/leds-netxbig.c b/drivers/leds/leds-netxbig.c index 77213b79f84d9..6692de0af68f1 100644 --- a/drivers/leds/leds-netxbig.c +++ b/drivers/leds/leds-netxbig.c @@ -440,6 +440,7 @@ static int netxbig_leds_get_of_pdata(struct device *dev, } gpio_ext_pdev = of_find_device_by_node(gpio_ext_np); if (!gpio_ext_pdev) { + of_node_put(gpio_ext_np); dev_err(dev, "Failed to find platform device for gpio-ext\n"); return -ENODEV; }