From: Armin Wolf <W_Armin@gmx.de>
Date: Sun, 18 May 2025 18:51:11 +0000 (+0200)
Subject: ACPI: bus: Bail out if acpi_kobj registration fails
X-Git-Tag: v5.15.186~148
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=49047b184f2baf58197e2044a6fc95775fc4e1d4;p=thirdparty%2Fkernel%2Fstable.git

ACPI: bus: Bail out if acpi_kobj registration fails

[ Upstream commit 94a370fc8def6038dbc02199db9584b0b3690f1a ]

The ACPI sysfs code will fail to initialize if acpi_kobj is NULL,
together with some ACPI drivers.

Follow the other firmware subsystems and bail out if the kobject
cannot be registered.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20250518185111.3560-2-W_Armin@gmx.de
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 9bc5bc5bc359b..ea63b8f272892 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -1335,8 +1335,10 @@ static int __init acpi_init(void)
 	}
 
 	acpi_kobj = kobject_create_and_add("acpi", firmware_kobj);
-	if (!acpi_kobj)
-		pr_debug("%s: kset create error\n", __func__);
+	if (!acpi_kobj) {
+		pr_err("Failed to register kobject\n");
+		return -ENOMEM;
+	}
 
 	init_prmt();
 	result = acpi_bus_init();