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WMI: fix potential NULL pointer dereference

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Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Dmitry Torokhov 2010-08-26 00:15:03 -07:00 • committed by Matthew Garrett
parent 64ed0ab8d0
commit 3d2c63eb5e
1 changed files with 2 additions and 0 deletions
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2
drivers/platform/x86/wmi.c
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@ -824,6 +824,8 @@ static acpi_status parse_wdg(acpi_handle handle)
return status; return status;
obj = (union acpi_object *) out.pointer; obj = (union acpi_object *) out.pointer;
if (!obj)
return AE_ERROR;
if (obj->type != ACPI_TYPE_BUFFER) { if (obj->type != ACPI_TYPE_BUFFER) {
status = AE_ERROR; status = AE_ERROR;