From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C205CC76188 for ; Wed, 5 Apr 2023 05:49:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236969AbjDEFtG (ORCPT ); Wed, 5 Apr 2023 01:49:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41752 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236914AbjDEFsp (ORCPT ); Wed, 5 Apr 2023 01:48:45 -0400 Received: from mta-64-226.siemens.flowmailer.net (mta-64-226.siemens.flowmailer.net [185.136.64.226]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1A5FA4209 for ; Tue, 4 Apr 2023 22:48:44 -0700 (PDT) Received: by mta-64-226.siemens.flowmailer.net with ESMTPSA id 202304050548413b6f5576ae346ac24b for ; Wed, 05 Apr 2023 07:48:41 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; s=fm1; d=siemens.com; i=daniel.starke@siemens.com; h=Date:From:Subject:To:Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:Cc:References:In-Reply-To; bh=uJwl9+ZDqP0Gge7uLTPceewqkWgzi1mhsOlMd09/Rek=; b=JXWjQW5q8OoaEBEhqWxkx7OVJ7Uguem4duDJb8hts9xh1cc6h93WGQ4UqYil6K0aCTayT9 3BFKIU+j93dhtYG+VlHMyb5eDS40h/C7D5GAponp1aBSXlrD1jPDD6zCYEA7wxY30bVlvDM4 1p5h2cWc+zQQnWHH8DjbO+/kLC+I4=; From: "D. Starke" To: linux-serial@vger.kernel.org, gregkh@linuxfoundation.org, jirislaby@kernel.org, ilpo.jarvinen@linux.intel.com Cc: linux-kernel@vger.kernel.org, Daniel Starke Subject: [PATCH 6/9] tty: n_gsm: increase malformed counter for malformed control frames Date: Wed, 5 Apr 2023 07:47:27 +0200 Message-Id: <20230405054730.3850-6-daniel.starke@siemens.com> In-Reply-To: <20230405054730.3850-1-daniel.starke@siemens.com> References: <20230405054730.3850-1-daniel.starke@siemens.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Flowmailer-Platform: Siemens Feedback-ID: 519:519-314044:519-21489:flowmailer Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Daniel Starke The malformed counter in gsm_mux is already increased in case of errors detected in gsm_queue() and gsm1_receive(). gsm_dlci_command() also detects a case for a malformed frame but does not increase the malformed counter yet. Fix this by also increasing the gsm_mux malformed counter in case of a malformed frame in gsm_dlci_command(). Signed-off-by: Daniel Starke --- drivers/tty/n_gsm.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 9f6669686c59..317aa67ed169 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -2454,8 +2454,10 @@ static void gsm_dlci_command(struct gsm_dlci *dlci, const u8 *data, int len) data += dlen; /* Malformed command? */ - if (clen > len) + if (clen > len) { + dlci->gsm->malformed++; return; + } if (command & 1) gsm_control_message(dlci->gsm, command, data, clen); -- 2.34.1