From c7633bf738ec6565f59076066bc73df3bcb5df4a Mon Sep 17 00:00:00 2001
From: Thanasis Polychronakis <thanpolas@gmail.com>
Date: Thu, 18 Apr 2013 21:48:35 +0300
Subject: [PATCH] fix unescaped exception in Multi.exec

---
 index.js | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/index.js b/index.js
index 6bc76d54a1..fcca3feba1 100644
--- a/index.js
+++ b/index.js
@@ -713,7 +713,7 @@ RedisClient.prototype.send_command = function (command, args, callback) {
             return callback(err);
         }
     }
-    
+
     buffer_args = false;
     for (i = 0, il = args.length, arg; i < il; i += 1) {
         if (Buffer.isBuffer(args[i])) {
@@ -1037,7 +1037,12 @@ Multi.prototype.exec = function (callback) {
                 if (typeof cur[cur.length - 1] === "function") {
                     cur[cur.length - 1](err);
                 } else {
-                    throw new Error(err);
+                  if (callback) {
+                      callback(new Error(err));
+                      return;
+                  } else {
+                      throw new Error(err);
+                  }
                 }
                 self.queue.splice(index, 1);
             }