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commit30393181fdupstream. This patch adds handling to return -EINVAL for an unknown addr type. The current behaviour is to return 0 as successful but the size of an unknown addr type is not defined and should return an error like -EINVAL. Fixes:94160108a7("net/ieee802154: fix uninit value bug in dgram_sendmsg") Signed-off-by: Alexander Aring <aahringo@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>