[vhost_user] Don't attempt to close(2) nil on `stop' and set socket to nil instead of -1 on close.
[vhost_user] Don't attempt to close(2) nil on `stop' and set
socket to nil instead of -1 on close.

javierguerragiraldez/snabbswitch,eugeneia/snabb,lukego/snabb,aperezdc/snabbswitch,andywingo/snabbswitch,snabbco/snabb,lukego/snabbswitch,Igalia/snabb,Igalia/snabb,alexandergall/snabbswitch,eugeneia/snabb,wingo/snabbswitch,mixflowtech/logsensor,Igalia/snabbswitch,Igalia/snabb,andywingo/snabbswitch,wingo/snabbswitch,snabbco/snabb,dwdm/snabbswitch,Igalia/snabbswitch,hb9cwp/snabbswitch,snabbco/snabb,Igalia/snabbswitch,Igalia/snabb,aperezdc/snabbswitch,heryii/snabb,dwdm/snabbswitch,Igalia/snabbswitch,lukego/snabb,dpino/snabb,plajjan/snabbswitch,eugeneia/snabb,dpino/snabbswitch,plajjan/snabbswitch,kbara/snabb,pirate/snabbswitch,snabbco/snabb,pirate/snabbswitch,wingo/snabb,dpino/snabb,dwdm/snabbswitch,virtualopensystems/snabbswitch,lukego/snabbswitch,fhanik/snabbswitch,lukego/snabb,snabbco/snabb,kellabyte/snabbswitch,eugeneia/snabbswitch,SnabbCo/snabbswitch,eugeneia/snabb,eugeneia/snabb,Igalia/snabb,virtualopensystems/snabbswitch,xdel/snabbswitch,SnabbCo/snabbswitch,wingo/snabb,wingo/snabb,justincormack/snabbswitch,Igalia/snabb,fhanik/snabbswitch,dpino/snabb,kbara/snabb,xdel/snabbswitch,alexandergall/snabbswitch,eugeneia/snabb,dpino/snabb,aperezdc/snabbswitch,kbara/snabb,eugeneia/snabbswitch,alexandergall/snabbswitch,xdel/snabbswitch,justincormack/snabbswitch,lukego/snabb,virtualopensystems/snabbswitch,wingo/snabbswitch,eugeneia/snabbswitch,hb9cwp/snabbswitch,alexandergall/snabbswitch,justincormack/snabbswitch,lukego/snabbswitch,kbara/snabb,eugeneia/snabb,justincormack/snabbswitch,mixflowtech/logsensor,wingo/snabb,andywingo/snabbswitch,dpino/snabb,SnabbCo/snabbswitch,alexandergall/snabbswitch,lukego/snabbswitch,dpino/snabbswitch,snabbnfv-goodies/snabbswitch,kbara/snabb,mixflowtech/logsensor,pavel-odintsov/snabbswitch,heryii/snabb,eugeneia/snabbswitch,snabbnfv-goodies/snabbswitch,snabbco/snabb,Igalia/snabb,snabbnfv-goodies/snabbswitch,fhanik/snabbswitch,mixflowtech/logsensor,kellabyte/snabbswitch,pavel-odintsov/snabbswitch,hb9cwp/snabbswitch,kellabyte/snabbswitch,heryii/snabb,plajjan/snabbswitch,wingo/snabb,javierguerragiraldez/snabbswitch,SnabbCo/snabbswitch,wingo/snabb,heryii/snabb,snabbnfv-goodies/snabbswitch,plajjan/snabbswitch,aperezdc/snabbswitch,Igalia/snabb,hb9cwp/snabbswitch,dpino/snabb,snabbco/snabb,alexandergall/snabbswitch,pirate/snabbswitch,eugeneia/snabb,heryii/snabb,javierguerragiraldez/snabbswitch,Igalia/snabbswitch,dpino/snabbswitch,kbara/snabb,snabbco/snabb,mixflowtech/logsensor,wingo/snabbswitch,dpino/snabbswitch,alexandergall/snabbswitch,alexandergall/snabbswitch,heryii/snabb,pavel-odintsov/snabbswitch,andywingo/snabbswitch,dpino/snabb