From 5c4e6708e0ee8e0143503570883c71eb99b554fb Mon Sep 17 00:00:00 2001
From: aimuz <mr.imuz@gmail.com>
Date: Wed, 17 May 2023 14:21:04 +0800
Subject: [PATCH] fix: check data nil

Signed-off-by: aimuz <mr.imuz@gmail.com>
---
 klog.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/klog.go b/klog.go
index 3462978b..a4290d11 100644
--- a/klog.go
+++ b/klog.go
@@ -873,7 +873,7 @@ func (l *loggingT) output(s severity.Severity, logger *logWriter, buf *buffer.Bu
 		if logger.writeKlogBuffer != nil {
 			logger.writeKlogBuffer(data)
 		} else {
-			if data[len(data)-1] == '\n' {
+			if len(data) > 0 && data[len(data)-1] == '\n' {
 				data = data[:len(data)-1]
 			}
 			// TODO: set 'severity' and caller information as structured log info