If delay scheduler decides not to send the packet right away, it requeues
it.  If the requeue fails, it should go and look again rather than waking
up prematurely.

Same patch should apply to both 2.6 and 2.4
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@redhat.com>