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ACPI / sysfs: correctly check failing memory allocation

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Since kobject_create_and_add() can fail under memory pressure,
its return value needs to be checked against NULL before passing
it to sysfs_create_file().

Signed-off-by: Insu Yun <wuninsu@gmail.com>
[ rjw: Subject & changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Insu Yun
2015-10-15 12:19:30 -04:00
committed by Rafael J. Wysocki
parent f934c74507
commit bc1e49df34
1 changed files with 3 additions and 0 deletions
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3
drivers/acpi/sysfs.c
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@@ -878,6 +878,9 @@ int __init acpi_sysfs_init(void)
return result; return result;
hotplug_kobj = kobject_create_and_add("hotplug", acpi_kobj); hotplug_kobj = kobject_create_and_add("hotplug", acpi_kobj);
if (!hotplug_kobj)
return -ENOMEM;
result = sysfs_create_file(hotplug_kobj, &force_remove_attr.attr); result = sysfs_create_file(hotplug_kobj, &force_remove_attr.attr);
if (result) if (result)
return result; return result;