WMI: fix potential NULL pointer dereference

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This commit is contained in:
Dmitry Torokhov 2010-08-26 00:15:03 -07:00 committed by Matthew Garrett
parent 64ed0ab8d0
commit 3d2c63eb5e

View File

@ -824,6 +824,8 @@ static acpi_status parse_wdg(acpi_handle handle)
return status;
obj = (union acpi_object *) out.pointer;
if (!obj)
return AE_ERROR;
if (obj->type != ACPI_TYPE_BUFFER) {
status = AE_ERROR;