6.12-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 143981aa63f33d469a55a55fd9fb81cd90109672 ]
rti_wdt_probe() does not release the OF node reference obtained by of_parse_phandle(). Add a of_node_put() call.
This was found by an experimental verification tool that I am developing. Due to the lack of the actual device, no runtime test was able to be performed.
Fixes: f20ca595ae23 ("watchdog:rit_wdt: Add support for WDIOF_CARDRESET") Signed-off-by: Joe Hattori joe@pf.is.s.u-tokyo.ac.jp Reviewed-by: Guenter Roeck linux@roeck-us.net Link: https://lore.kernel.org/r/20250105111718.4184192-1-joe@pf.is.s.u-tokyo.ac.jp Signed-off-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Wim Van Sebroeck wim@linux-watchdog.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/watchdog/rti_wdt.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/watchdog/rti_wdt.c b/drivers/watchdog/rti_wdt.c index 563d842014dfb..cc239251e1938 100644 --- a/drivers/watchdog/rti_wdt.c +++ b/drivers/watchdog/rti_wdt.c @@ -301,6 +301,7 @@ static int rti_wdt_probe(struct platform_device *pdev) node = of_parse_phandle(pdev->dev.of_node, "memory-region", 0); if (node) { ret = of_address_to_resource(node, 0, &res); + of_node_put(node); if (ret) { dev_err(dev, "No memory address assigned to the region.\n"); goto err_iomap;