This patch mekas init_default and uninit_default symmetric
with a call to delete napi. Additionally, the uninit_default
gained delete napi call in case of init_default fails.
Fixes: 1d487d85c848 ('IB/IPoIB: Separate control and data related initializations') Signed-off-by: Alex Vesker <valex@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>