diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 30a124b74d45..5e171e45c685 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -961,16 +961,16 @@ static int set_serial_info(struct acm *acm,
 
 	mutex_lock(&acm->port.mutex);
 
-	if ((new_serial.close_delay != old_close_delay) ||
-            (new_serial.closing_wait != old_closing_wait)) {
-		if (!capable(CAP_SYS_ADMIN))
+	if (!capable(CAP_SYS_ADMIN)) {
+		if ((new_serial.close_delay != old_close_delay) ||
+	            (new_serial.closing_wait != old_closing_wait))
 			retval = -EPERM;
-		else {
-			acm->port.close_delay  = close_delay;
-			acm->port.closing_wait = closing_wait;
-		}
-	} else
-		retval = -EOPNOTSUPP;
+		else
+			retval = -EOPNOTSUPP;
+	} else {
+		acm->port.close_delay  = close_delay;
+		acm->port.closing_wait = closing_wait;
+	}
 
 	mutex_unlock(&acm->port.mutex);
 	return retval;