We refactor the tipc_sk_bind() function, so that the lock handling
is handled separately from the logics. We also move some sanity
tests to earlier in the call chain, to the function tipc_bind().
Acked-by: NYing Xue <ying.xue@windriver.com>
Signed-off-by: NJon Maloy <jmaloy@redhat.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>