From patchwork Mon Jan 9 14:11:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jaroslav Kysela X-Patchwork-Id: 640929 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6AAF5C5479D for ; Mon, 9 Jan 2023 14:12:43 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id D9423B0CF; Mon, 9 Jan 2023 15:11:50 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz D9423B0CF DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1673273560; bh=uHOfRESEj1MvNCfQSp/Q2fqxgAH5un2XKHWwe2HQ7kM=; h=From:To:Subject:Date:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:Cc:From; b=F1Hkb76Sbwq5fkfT0zsnWiT5w03fZYFGsLoiIgU2th9Vbklq9hkfi0+Lks4JkB59j 235RuPHwCQ6cMNdnZYGtYNXHzTKiYlSC0EjkHFsMd0fPGY8KUGs/cYWZIR2suKSJpD IW4MMl71nu61CZgOzfg2Haw/EtJQuVM+7+CzgcmE= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 8CD81F802BE; Mon, 9 Jan 2023 15:11:50 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 34D6FF8030F; Mon, 9 Jan 2023 15:11:50 +0100 (CET) Received: from mail1.perex.cz (mail1.perex.cz [77.48.224.245]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id B6A34F800C7 for ; Mon, 9 Jan 2023 15:11:48 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz B6A34F800C7 Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key, secure) header.d=perex.cz header.i=@perex.cz header.a=rsa-sha256 header.s=default header.b=V7edFy/y Received: from mail1.perex.cz (localhost [127.0.0.1]) by smtp1.perex.cz (Perex's E-mail Delivery System) with ESMTP id 377A2A0040; Mon, 9 Jan 2023 15:11:46 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.perex.cz 377A2A0040 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=perex.cz; s=default; t=1673273506; bh=bdJQw3RjHRvPBAzXLjM89tBZKg2o+zofSE/cDoto0WU=; h=From:To:Cc:Subject:Date:From; b=V7edFy/yPIjYulHgOUsPgjvAKpum3D5VbQQeB0NZU3BIMdKzY2iLUbyGHEe8kMwrF lrbTQTQ4bkf5SC7ZGFCCFoYD5KpIHGCCpCcqgnjVFB7PXrtOCD6fuJ48lzAnVmyiHj 0264FaTPNsmbwUKH/W18BHKmW+6lrhkqTZXMqfb0= Received: from p1gen2.perex-int.cz (unknown [192.168.100.98]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: perex) by mail1.perex.cz (Perex's E-mail Delivery System) with ESMTPSA; Mon, 9 Jan 2023 15:11:41 +0100 (CET) From: Jaroslav Kysela To: ALSA development Subject: [PATCH] ALSA: usb-audio: Always initialize fixed_rate in snd_usb_find_implicit_fb_sync_format() Date: Mon, 9 Jan 2023 15:11:33 +0100 Message-Id: <20230109141133.335543-1-perex@perex.cz> X-Mailer: git-send-email 2.39.0 MIME-Version: 1.0 X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Takashi Iwai , Dan Carpenter , stable@vger.kernel.org Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Handle the fallback code path, too. Fixes: fd28941cff1c ("ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless") BugLink: https://lore.kernel.org/alsa-devel/Y7frf3N%2FxzvESEsN@kili/ Reported-by: Dan Carpenter Cc: Signed-off-by: Jaroslav Kysela --- sound/usb/implicit.c | 3 ++- sound/usb/pcm.c | 2 ++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/sound/usb/implicit.c b/sound/usb/implicit.c index 41ac7185b42b..4727043fd745 100644 --- a/sound/usb/implicit.c +++ b/sound/usb/implicit.c @@ -471,7 +471,7 @@ snd_usb_find_implicit_fb_sync_format(struct snd_usb_audio *chip, subs = find_matching_substream(chip, stream, target->sync_ep, target->fmt_type); if (!subs) - return sync_fmt; + goto end; high_score = 0; list_for_each_entry(fp, &subs->fmt_list, list) { @@ -485,6 +485,7 @@ snd_usb_find_implicit_fb_sync_format(struct snd_usb_audio *chip, } } + end: if (fixed_rate) *fixed_rate = snd_usb_pcm_has_fixed_rate(subs); return sync_fmt; diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 99a66d0ef5b2..d2c652aa1385 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -163,6 +163,8 @@ bool snd_usb_pcm_has_fixed_rate(struct snd_usb_substream *subs) struct snd_usb_audio *chip = subs->stream->chip; int rate = -1; + if (!subs) + return false; if (!(chip->quirk_flags & QUIRK_FLAG_FIXED_RATE)) return false; list_for_each_entry(fp, &subs->fmt_list, list) {