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Date:   Tue, 10 Aug 2021 10:16:23 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Adrien Precigout <dev@...rip.fr>,
        Sasha Levin <sashal@...nel.org>, linux-acpi@...r.kernel.org,
        devel@...ica.org
Subject: [PATCH AUTOSEL 4.19 10/11] Revert "ACPICA: Fix memory leak caused by _CID repair function"

From: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>

[ Upstream commit 6511a8b5b7a65037340cd8ee91a377811effbc83 ]

Revert commit c27bac0314131 ("ACPICA: Fix memory leak caused by _CID
repair function") which is reported to cause a boot issue on Acer
Swift 3 (SF314-51).

Reported-by: Adrien Precigout <dev@...rip.fr>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/acpi/acpica/nsrepair2.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c
index 4c8ce483805d..a3bd6280882c 100644
--- a/drivers/acpi/acpica/nsrepair2.c
+++ b/drivers/acpi/acpica/nsrepair2.c
@@ -375,13 +375,6 @@ acpi_ns_repair_CID(struct acpi_evaluate_info *info,
 
 			(*element_ptr)->common.reference_count =
 			    original_ref_count;
-
-			/*
-			 * The original_element holds a reference from the package object
-			 * that represents _HID. Since a new element was created by _HID,
-			 * remove the reference from the _CID package.
-			 */
-			acpi_ut_remove_reference(original_element);
 		}
 
 		element_ptr++;
-- 
2.30.2

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