From 06292a0ecafc83ac06a6b285297548702c96b85e Mon Sep 17 00:00:00 2001
From: AllenX2018 <leloucharcher@163.com>
Date: Mon, 11 Jan 2021 16:27:52 +0800
Subject: [PATCH] add error handle

---
 server/web/controller.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/server/web/controller.go b/server/web/controller.go
index 69ad64da..ef6ba27b 100644
--- a/server/web/controller.go
+++ b/server/web/controller.go
@@ -611,13 +611,15 @@ func (c *Controller) SaveToFile(fromFile, toFile string) error {
 		return err
 	}
 	defer file.Close()
+
 	f, err := os.OpenFile(toFile, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0666)
 	if err != nil {
 		return err
 	}
 	defer f.Close()
-	io.Copy(f, file)
-	return nil
+
+	_, err = io.Copy(f, file)
+	return err
 }
 
 // StartSession starts session and load old session data info this controller.