check for nil pointers before dereferencing

gocql · Aug 21, 2013 · e94363c · e94363c
1 parent b3429c1
commit e94363c
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/topology.go b/topology.go
@@ -58,6 +58,9 @@ func (r *RoundRobin) Pick(qry *Query) *Conn {
 		node = r.pool[pos%uint32(len(r.pool))]
 	}
 	r.mu.RUnlock()
+	if node == nil {
+		return nil
+	}
 	return node.Pick(qry)
 }