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H A Dtap.c3a2d44f6dd1d6cc1e5a5ebfa736a72e035c41d1b Thu Feb 25 23:05:57 UTC 2016 Paolo Bonzini <pbonzini@redhat.com> net: simplify net_init_tap_one logic

net_init_tap_one receives in vhostfdname a fd name from vhostfd= or
vhostfds=, or NULL if there is no vhostfd=/vhostfds=. It is simpler
to just check vhostfdname, than it is to check for vhostfd= or
vhostfds=. This also calms down Coverity, which otherwise thinks
that monitor_fd_param could dereference a NULL vhostfdname.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>