From 660ba678f9998aca6db74f2dd912fa5124f0fa31 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Wed, 11 May 2022 11:14:19 +0400
Subject: [PATCH] firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle
Git-commit: 660ba678f9998aca6db74f2dd912fa5124f0fa31
Patch-mainline: v5.19-rc1
References: git-fixes
kobject_init_and_add() takes reference even when it fails.
According to the doc of kobject_init_and_add()
If this function returns an error, kobject_put() must be called to
properly clean up the memory associated with the object.
Fix this issue by calling kobject_put().
Fixes: 948af1f0bbc8 ("firmware: Basic dmi-sysfs support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220511071421.9769-1-linmq006@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/firmware/dmi-sysfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/firmware/dmi-sysfs.c b/drivers/firmware/dmi-sysfs.c
index 3a353776bd34..66727ad3361b 100644
--- a/drivers/firmware/dmi-sysfs.c
+++ b/drivers/firmware/dmi-sysfs.c
@@ -604,7 +604,7 @@ static void __init dmi_sysfs_register_handle(const struct dmi_header *dh,
"%d-%d", dh->type, entry->instance);
if (*ret) {
- kfree(entry);
+ kobject_put(&entry->kobj);
return;
}
--
2.35.3