From 660ba678f9998aca6db74f2dd912fa5124f0fa31 Mon Sep 17 00:00:00 2001 From: Miaoqian Lin Date: Wed, 11 May 2022 11:14:19 +0400 Subject: [PATCH] firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle 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 Link: https://lore.kernel.org/r/20220511071421.9769-1-linmq006@gmail.com Signed-off-by: Greg Kroah-Hartman --- 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; }