net: Fix possible NULL pointer dereference.
net: Fix possible NULL pointer dereference.

Signed-off-by: Vladimir Krivopalov <8393b6f566d8ebdefd4d2517fe16f44423413d9c@gmail.com>
Message-Id: <20170828061336.3007-1-8393b6f566d8ebdefd4d2517fe16f44423413d9c@gmail.com>

scylladb/seastar,dreamsxin/seastar,avikivity/seastar,dreamsxin/seastar,syuu1228/seastar,syuu1228/seastar,scylladb/seastar,cloudius-systems/seastar,dreamsxin/seastar,cloudius-systems/seastar,scylladb/seastar,avikivity/seastar,avikivity/seastar,cloudius-systems/seastar,syuu1228/seastar