[ Upstream commitb539ea60f5] Null pointer dereference seen when cxgb4vf driver is unloaded without bringing up any interfaces, moving mac_hlist initialization to driver probe and free the mac_hlist in remove to fix the issue. Fixes:24357e06ba("cxgb4vf: fix memleak in mac_hlist initialization") Signed-off-by: Arjun Vynipadath <arjun@chelsio.com> Signed-off-by: Casey Leedom <leedom@chelsio.com> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>