From: Jean Delvare <jdelvare@xxxxxxx> [ Upstream commit c6d9c0798ed366a09a9e53d71edcd2266e34a6eb ] Unlike release_mem_region(), a call to release_resource() does not free the resource, so it has to be freed explicitly to avoid a memory leak. Signed-off-by: Jean Delvare <jdelvare@xxxxxxx> Fixes: 0578fff4aae5 ("Watchdog: sp5100_tco: Add initialization using EFCH MMIO") Cc: Terry Bowman <terry.bowman@xxxxxxx> Cc: Wim Van Sebroeck <wim@xxxxxxxxxxxxxxxxxx> Cc: Guenter Roeck <linux@xxxxxxxxxxxx> Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx> Link: https://lore.kernel.org/r/20220621152840.420a0f4c@endymion.delvare Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx> Signed-off-by: Wim Van Sebroeck <wim@xxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/watchdog/sp5100_tco.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c index 86ffb58fbc85..ae54dd33e233 100644 --- a/drivers/watchdog/sp5100_tco.c +++ b/drivers/watchdog/sp5100_tco.c @@ -402,6 +402,7 @@ static int sp5100_tco_setupdevice_mmio(struct device *dev, iounmap(addr); release_resource(res); + kfree(res); return ret; } -- 2.35.1