pva/server.h allow createChannel() to return NULL

src/server/server.cpp

@@ -242,6 +242,8 @@ struct DynamicProvider::Impl : public pva::ChannelProvider
         pvd::Status sts;
 
         ret = handler->createChannel(ChannelProvider::shared_pointer(internal_self), name, requester);
+        if(!ret)
+            sts = pvd::Status::error("Channel no longer available"); // because we only get here if channelFind() succeeds
 
         requester->channelCreated(sts, ret);
         return ret;

src/server/serverContext.cpp

@@ -183,7 +183,7 @@ void ServerContextImpl::loadConfiguration()
     }
 
     if(_channelProviders.empty())
-        LOG(logLevelError, "ServerContext configured with not Providers will do nothing!\n");
+        LOG(logLevelError, "ServerContext configured with no Providers will do nothing!\n");
 
     //
     // introspect network interfaces