From: Jean Delvare <jdelvare@suse.de>
Date: Tue, 21 Jun 2022 13:28:40 +0000 (+0200)
Subject: watchdog: sp5100_tco: Fix a memory leak of EFCH MMIO resource
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=c6d9c0798ed366a09a9e53d71edcd2266e34a6eb;p=linux.git

watchdog: sp5100_tco: Fix a memory leak of EFCH MMIO resource

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>
---

diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c
index 86ffb58fbc854..ae54dd33e2336 100644
--- a/drivers/watchdog/sp5100_tco.c
+++ b/drivers/watchdog/sp5100_tco.c
@@ -402,6 +402,7 @@ out:
 		iounmap(addr);
 
 	release_resource(res);
+	kfree(res);
 
 	return ret;
 }