From 1dcc3d3362b0c97e48290f7786be85b4cec2a147 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 17 Jul 2015 22:54:09 +0200
Subject: ACPI / bus: Move ACPI bus type registration

Move the registration of the ACPI bus type to acpi_bus_init() and
avoid using ACPI going forward if it fails (too many things depend on
the presence of the ACPI bus type).

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 2f50fc4..7a3ad92 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -1039,7 +1039,9 @@ static int __init acpi_bus_init(void)
 	 */
 	acpi_root_dir = proc_mkdir(ACPI_BUS_FILE_ROOT, NULL);
 
-	return 0;
+	result = bus_register(&acpi_bus_type);
+	if (!result)
+		return 0;
 
 	/* Mimic structured exception handling */
       error1:
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index f541f68..2fe5a37 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1891,12 +1891,6 @@ int __init acpi_scan_init(void)
 {
 	int result;
 
-	result = bus_register(&acpi_bus_type);
-	if (result) {
-		/* We don't want to quit even if we failed to add suspend/resume */
-		printk(KERN_ERR PREFIX "Could not register bus type\n");
-	}
-
 	acpi_pci_root_init();
 	acpi_pci_link_init();
 	acpi_processor_init();
-- 
cgit v0.10.2