From c6d9c0798ed366a09a9e53d71edcd2266e34a6eb Mon Sep 17 00:00:00 2001
From: Jean Delvare <jdelvare@suse.de>
Date: Tue, 21 Jun 2022 15:28:40 +0200
Subject: [PATCH] watchdog: sp5100_tco: Fix a memory leak of EFCH MMIO resource
Git-commit: c6d9c0798ed366a09a9e53d71edcd2266e34a6eb
Patch-mainline: v6.0-rc1
References: git-fixes
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@suse.de>
Fixes: 0578fff4aae5 ("Watchdog: sp5100_tco: Add initialization using EFCH MMIO")
Cc: Terry Bowman <terry.bowman@amd.com>
Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220621152840.420a0f4c@endymion.delvare
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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;
}
--
2.35.3