From 9a2e849fb6de471b82d19989a7944d3b7671793c Mon Sep 17 00:00:00 2001
From: Hanjun Guo <guohanjun@huawei.com>
Date: Fri, 18 Sep 2020 17:13:28 +0800
Subject: [PATCH] ACPI: configfs: Add missing config_item_put() to fix refcount leak
Git-commit: 9a2e849fb6de471b82d19989a7944d3b7671793c
Patch-mainline: v5.10-rc1
References: git-fixes

config_item_put() should be called in the drop_item callback, to
decrement refcount for the config item.

Fixes: 772bf1e2878ec ("ACPI: configfs: Unload SSDT on configfs entry removal")
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]

Cc: 4.13+ <stable@vger.kernel.org> # 4.13+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/acpi/acpi_configfs.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/acpi/acpi_configfs.c
+++ b/drivers/acpi/acpi_configfs.c
@@ -228,6 +228,7 @@ static void acpi_table_drop_item(struct
 
 	ACPI_INFO(("Host-directed Dynamic ACPI Table Unload"));
 	acpi_tb_unload_table(table->index);
+	config_item_put(cfg);
 }
 
 static struct configfs_group_operations acpi_table_group_ops = {