socket: if we fail to create an instantiated service for a socket, don't put the...

socket: if we fail to create an instantiated service for a socket, don't put the socket in failure mode

An incoming connection that is immediately terminated might result in
getpeername() or a similar call failing. Hence it is quite possible that
while we are setting up an instantiated service for a socket we might
get an error and we shouldn't take this as hint to take the listening
socket down.

https://bugs.freedesktop.org/show_bug.cgi?id=45297
https://bugzilla.novell.com/show_bug.cgi?id=741590