string nil and add return

Signed-off-by: bufferflies <1045931706@qq.com>
tikv · Dec 21, 2021 · 8ef5d44 · 8ef5d44
1 parent 08931b3
commit 8ef5d44
Show file tree

Hide file tree

Showing 2 changed files with 2 additions and 1 deletion.
diff --git a/tools/pd-ctl/main.go b/tools/pd-ctl/main.go
@@ -53,6 +53,7 @@ func main() {
 		in, err := pdctl.ReadStdin(os.Stdin)
 		if err != nil {
 			fmt.Println(err)
+			return
 		}
 		inputs = in
 	}

diff --git a/tools/pd-ctl/pdctl/ctl.go b/tools/pd-ctl/pdctl/ctl.go
@@ -205,7 +205,7 @@ func ReadStdin(r io.Reader) (input []string, err error) {
 	if err != nil {
 		return nil, err
 	}
-	if s := strings.TrimSpace(string(b)); s != "" {
+	if s := strings.TrimSpace(string(b)); len(s) > 0 {
 		input = strings.Split(s, " ")
 	}
 	return input, nil