fixed CID-1397861 (coverity)
fixed CID-1397861 (coverity)

swoole/swoole-src,swoole/swoole-src,AJSoft/swoole-src,swoole/swoole-src,swoole/swoole-src,AJSoft/swoole-src,tutanhamon/swoole-src,swoole/swoole-src,tutanhamon/swoole-src,LinkedDestiny/swoole-src,LinkedDestiny/swoole-src,LinkedDestiny/swoole-src,AJSoft/swoole-src,AJSoft/swoole-src,LinkedDestiny/swoole-src,AJSoft/swoole-src,LinkedDestiny/swoole-src,LinkedDestiny/swoole-src,LinkedDestiny/swoole-src,tutanhamon/swoole-src,tutanhamon/swoole-src,AJSoft/swoole-src,tutanhamon/swoole-src,AJSoft/swoole-src,tutanhamon/swoole-src,tutanhamon/swoole-src,swoole/swoole-src,swoole/swoole-src