As the kernel generally uses negated error numbers, *err needs to be
compared with -EAGAIN (d'oh).
Signed-off-by: Rainer Weikusat <rweikusat@mobileactivedefense.com> Fixes: ea3793ee29d3 ("core: enable more fine-grained datagram reception control") Signed-off-by: David S. Miller <davem@davemloft.net>