RedisNodes ping results check optimization

Signed-off-by: blackstorm <inf2inf2@outlook.com>

redisson/src/main/java/org/redisson/RedisNodes.java

@@ -149,10 +149,12 @@ public class RedisNodes<N extends Node> implements NodesGroup<N> {
         for (Entry<RedisConnection, RFuture<String>> entry : result.entrySet()) {
             RFuture<String> f = entry.getValue();
             f.awaitUninterruptibly();
-            if (!"PONG".equals(f.getNow())) {
+            String pong = f.getNow();
+            entry.getKey().closeAsync();
+            if (!"PONG".equals(pong)) {
                 res = false;
+                break;
             }
-            entry.getKey().closeAsync();
         }
 
         // true and no futures were missed during client connection