From: Randy Dunlap <rdunlap@xxxxxxxxxxxx>
Check and handle kset_register() and kobject_register() init errors.
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/acpi/scan.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff -puN drivers/acpi/scan.c~acpi-scan-handle-kset-kobject-errors drivers/acpi/scan.c
--- a/drivers/acpi/scan.c~acpi-scan-handle-kset-kobject-errors
+++ a/drivers/acpi/scan.c
@@ -4,6 +4,7 @@
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/kernel.h>
#include <linux/acpi.h>
#include <acpi/acpi_drivers.h>
@@ -113,6 +114,8 @@ static struct kset acpi_namespace_kset =
static void acpi_device_register(struct acpi_device *device,
struct acpi_device *parent)
{
+ int err;
+
/*
* Linkage
* -------
@@ -138,7 +141,10 @@ static void acpi_device_register(struct
device->kobj.parent = &parent->kobj;
device->kobj.ktype = &ktype_acpi_ns;
device->kobj.kset = &acpi_namespace_kset;
- kobject_register(&device->kobj);
+ err = kobject_register(&device->kobj);
+ if (err < 0)
+ printk(KERN_WARNING "%s: kobject_register error: %d\n",
+ __FUNCTION__, err);
create_sysfs_device_files(device);
}
@@ -1450,7 +1456,9 @@ static int __init acpi_scan_init(void)
if (acpi_disabled)
return 0;
- kset_register(&acpi_namespace_kset);
+ result = kset_register(&acpi_namespace_kset);
+ if (result < 0)
+ printk(KERN_ERR PREFIX "kset_register error: %d\n", result);
result = bus_register(&acpi_bus_type);
if (result) {
_
-
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