Exception handling is executed in the normal path and it will cause
vhost-user init failure.
Fixes: d6983a70e2 ("vhost: check return of pthread calls")
Reported-by: Lei Yao <lei.a.yao@intel.com>
Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
Tested-by: Lei Yao <lei.a.yao@intel.com>
Reviewed-by: Jens Freimann <jfreimann@redhat.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>