Return some error if prompter functions return failure.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@4322 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/krb5/init_creds_pw.c

@@ -415,6 +415,7 @@ krb5_get_init_creds_password(krb5_context context,
 	free (prompt.prompt);
 	if (ret) {
 	    memset (buf, 0, sizeof(buf));
+	    ret = KRB5KDC_ERR_NONE;
 	    goto out;
 	}
 	password = password_data.data;