net: openvswitch: fixes crash if nf_conncount_init() fails

net: openvswitch: fixes crash if nf_conncount_init() fails

If nf_conncount_init fails currently the dispatched work is not canceled,
causing problems when the timer fires. This change fixes this by not
scheduling the work until all initialization is successful.

Fixes: 7a106103de59 ("net: openvswitch: fixes potential deadlock in dp cleanup code")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
Reviewed-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>