ciao-launcher: networking: Fix a crash when Vnic creation fails
ciao-launcher: networking: Fix a crash when Vnic creation fails

A crash occurred if an attempt to create a VNIC for a container
failed.  The code was trying to access the bridge name from
a nil pointer.

Signed-off-by: Mark Ryan <f16215f7acd0bd7fdc465539215bd574c785b062@intel.com>

tpepper/ciao,jorgevgut/ciao,01org/ciao,mrkz/ciao,leoswaldo/ciao,obedmr/ciao,erick0z/ciao,mcastelino/ciao,01org/ciao,erick0z/ciao,markdryan/ciao,kaccardi/ciao,wcwxyz/ciao,jorgevgut/ciao,matthewrsj/ciao,ciao-project/ciao,rbradford/ciao,matthewrsj/ciao,tpepper/ciao,mrkz/ciao,mcastelino/ciao,markdryan/ciao,obedmr/ciao,rbradford/ciao,chavafg/ciao,wcwxyz/ciao,leoswaldo/ciao,matthewrsj/ciao,mcastelino/ciao,obedmr/ciao,wcwxyz/ciao,erick0z/ciao,mrkz/ciao,leoswaldo/ciao,chavafg/ciao,ciao-project/ciao,jorgevgut/ciao,kaccardi/ciao,tpepper/ciao