Commit b58454ec authored by Paul Rolland's avatar Paul Rolland Committed by Linus Torvalds

wmi: check find_guid() return value to prevent oops

Signed-off-by: rol@as2917.net <Paul Rolland>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b73d45da
......@@ -492,8 +492,7 @@ wmi_notify_handler handler, void *data)
if (!guid || !handler)
return AE_BAD_PARAMETER;
find_guid(guid, &block);
if (!block)
if (!find_guid(guid, &block))
return AE_NOT_EXIST;
if (block->handler)
......@@ -521,8 +520,7 @@ acpi_status wmi_remove_notify_handler(const char *guid)
if (!guid)
return AE_BAD_PARAMETER;
find_guid(guid, &block);
if (!block)
if (!find_guid(guid, &block))
return AE_NOT_EXIST;
if (!block->handler)
......
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