crypto: don't call callback twice in case crypto.randomBytes fails

PR-URL: #40157
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Filip Skokan <panva.ip@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Robert Nagy <ronagy@icloud.com>

lib/internal/crypto/random.js

@@ -102,7 +102,7 @@ function randomBytes(size, callback) {
 
   // Keep the callback as a regular function so this is propagated.
   randomFill(buf.buffer, 0, size, function(error) {
-    if (error) FunctionPrototypeCall(callback, this, error);
+    if (error) return FunctionPrototypeCall(callback, this, error);
     FunctionPrototypeCall(callback, this, null, buf);
   });
 }