linux-kernel - [PATCH 2/2] ACPI: bus: Bail out if acpi

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Message-Id: <20250518185111.3560-2-W_Armin@gmx.de>
Date: Sun, 18 May 2025 20:51:11 +0200
From: Armin Wolf <W_Armin@....de>
To: rafael@...nel.org,
	lenb@...nel.org
Cc: j@...nau.net,
	linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] ACPI: bus: Bail out if acpi_kobj registration fails

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@....de>
---
 drivers/acpi/bus.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 058910af82bc..c2ab2783303f 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -1446,8 +1446,10 @@ 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();
 	acpi_init_pcc();
-- 
2.39.5