tty: handle setRawMode errors

PR-URL: #22886
Refs: #21773
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

Author: seishun

lib/tty.js

@@ -63,7 +63,11 @@ inherits(ReadStream, net.Socket);
 
 ReadStream.prototype.setRawMode = function(flag) {
   flag = !!flag;
-  this._handle.setRawMode(flag);
+  const err = this._handle.setRawMode(flag);
+  if (err) {
+    this.emit('error', errors.errnoException(err, 'setRawMode'));
+    return;
+  }
   this.isRaw = flag;
 };