ieee802154: Fix memory leak in ieee802154_add_iface()
ieee802154: Fix memory leak in ieee802154_add_iface()

Fix a memory leak in the ieee802154_add_iface() error handling path.
Detected by Coverity: CID 710490.

Signed-off-by: Christian Engelmayer <426f95a839c55c67af64a403cbb9189f8d39e4c6@gmx.at>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs