tree e44a718ac6254aaf8e866f4d0ea7eee360a01443
parent c590cbbb7327d009c4971cf6a2aee7357ca13af8
author Asim Shankar <ashankar@google.com> 1468603825 -0700
committer Asim Shankar <ashankar@google.com> 1468603865 -0700

Resolve vanadium/issues#1390

When discover.Advertise returns an error, the "stop" function is nil.
Don't call it.

Change-Id: I04f3c41f180957723afb393a19f5d7dae70132d0