5.15-stable review patch. If anyone has any objections, please let me know.
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From: Joe Hattori joe@pf.is.s.u-tokyo.ac.jp
[ 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 joe@pf.is.s.u-tokyo.ac.jp Link: https://lore.kernel.org/r/20241216074923.628509-1-joe@pf.is.s.u-tokyo.ac.jp Signed-off-by: Lee Jones lee@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/leds/leds-netxbig.c | 1 + 1 file changed, 1 insertion(+)
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; }