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 X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 50D0DC10F14 for ; Thu, 3 Oct 2019 16:04:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1695B222CC for ; Thu, 3 Oct 2019 16:04:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570118682; bh=9HFAQGshaeOx/Cr9UHNqzoYDPUUvGDwBfjfooOSH8zc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=RdXC/bDq1oOpt6HLroWW5ZygOCo4ij4G2q7+WYpQzCPt5eKfASrRt/xXotgPr0Jtv Qwldeb16lBVTinPFh9jhXiS8z8MnUinxO16UPk/1piUgjFb6hmdfSTrwg9r5euAa1m 0A+v3zE7U27X9FFU1+11dg//AxUiet35QR0em0Ps= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732449AbfJCQEk (ORCPT ); Thu, 3 Oct 2019 12:04:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:50824 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732432AbfJCQEh (ORCPT ); Thu, 3 Oct 2019 12:04:37 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7879D222CC; Thu, 3 Oct 2019 16:04:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570118677; bh=9HFAQGshaeOx/Cr9UHNqzoYDPUUvGDwBfjfooOSH8zc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SnrNqEuBTGKxSqf8t2Y75T3zOiT/eOewf0jNujPduUaLtJ9UvttFXyGtCQlkOzN7w BywVyCda83gO2vqJc3Hu8cHPldq2xrN8vL3OtlbbEomxjEM73HQmoivgBB89jMrqRm 4x/IXw5Pnjjm4oiUA+IK0gtgJM8BLgW2k0iq52CM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Takashi Sakamoto , Takashi Iwai Subject: [PATCH 4.9 098/129] ALSA: firewire-tascam: handle error code when getting current source of clock Date: Thu, 3 Oct 2019 17:53:41 +0200 Message-Id: <20191003154404.302602005@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191003154318.081116689@linuxfoundation.org> References: <20191003154318.081116689@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Takashi Sakamoto commit 2617120f4de6d0423384e0e86b14c78b9de84d5a upstream. The return value of snd_tscm_stream_get_clock() is ignored. This commit checks the value and handle error. Fixes: e453df44f0d6 ("ALSA: firewire-tascam: add PCM functionality") Cc: # v4.4+ Signed-off-by: Takashi Sakamoto Link: https://lore.kernel.org/r/20190910135152.29800-2-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/firewire/tascam/tascam-pcm.c | 3 +++ 1 file changed, 3 insertions(+) --- a/sound/firewire/tascam/tascam-pcm.c +++ b/sound/firewire/tascam/tascam-pcm.c @@ -81,6 +81,9 @@ static int pcm_open(struct snd_pcm_subst goto err_locked; err = snd_tscm_stream_get_clock(tscm, &clock); + if (err < 0) + goto err_locked; + if (clock != SND_TSCM_CLOCK_INTERNAL || amdtp_stream_pcm_running(&tscm->rx_stream) || amdtp_stream_pcm_running(&tscm->tx_stream)) {