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[2620:137:e000::1:18]) by mx.google.com with ESMTPS id 73-20020a62194c000000b004fa6cbcbbf0si7295876pfz.235.2022.04.12.12.51.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Apr 2022 12:51:33 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=QkEh1cbc; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id D918D6D386; Tue, 12 Apr 2022 12:47:29 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236081AbiDJJQW (ORCPT + 99 others); Sun, 10 Apr 2022 05:16:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40936 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236120AbiDJJQT (ORCPT ); Sun, 10 Apr 2022 05:16:19 -0400 Received: from mail-pj1-x102e.google.com (mail-pj1-x102e.google.com [IPv6:2607:f8b0:4864:20::102e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 282795E17B for ; Sun, 10 Apr 2022 02:14:07 -0700 (PDT) Received: by mail-pj1-x102e.google.com with SMTP id s14-20020a17090a880e00b001caaf6d3dd1so15647370pjn.3 for ; Sun, 10 Apr 2022 02:14:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:from:date:message-id:subject:to:cc; bh=WDPfrzxoEqoQc1/eGWlrbqzJhsvrBmHHWTvNKjsYkJM=; b=QkEh1cbcPct4JczcOnXh+aKqtrHGkH6NNm7c3AONE1RhylRzyBpeOLzvd7XWaCm6XH 0w+5Wx7u/vA05q6JUyqN7PQhtlbPVEysyU/yzh0BQULuiFdn8agGYwB+505VhLt4peSN 4TQqL0CwpNkLD+pXkok19uXrGYOz1aLuv2SoKOxiG7XXzfYrJOFdAFlZPt91JtvjVucl 8meujpcl/phahG9kPygAXIHfghNcXE4SYZgupB24Crh1GdY5Wp3W4DUMacPMraqYwDHG Ihs0My6BDesqs2JDr04owaQwiBUL40bYC6Zr0GgT47YsCjoM5Q8dxiknldQpzfe+gFOU BG6g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:from:date:message-id:subject:to:cc; bh=WDPfrzxoEqoQc1/eGWlrbqzJhsvrBmHHWTvNKjsYkJM=; b=Jy1+XMGi48StMbCh5kbkW2JcdPfW5RlCGsU3na9K+7dtFskwvBAklJUhNkZOI6WzQn U1HsnJ+9i6XahC8GQeVYtgeYL33DSIoReES7NXb+JCtq5rWKGlrV+ECK01upBacB2+0J uUj33LVCCrHDog8wqzJg2mlvD4B6yM5KqvtEl5BY08AaHIWQJyy9OfR8jFJOhCaC+T61 YJgA6cQW6RgdG51MdiReAoFI0lCn7+knzKP+Vsnoio083CsQR8gxI9SyC61X77EPWXJX sSXlBgQV/sZC6nlvjiSf2QvhzejTyTGbu7chDOHuHVU2lMk5gAUd19QhjE2xwkRexXZJ N2BQ== X-Gm-Message-State: AOAM531gpOXdoR6f/N+PgpnRe9NtFLHTL8DnN0DWhpVkq3x1yGrZwfa7 Sxpr4YcdusNg9OqT7dfvUWyTJidGzMrjLrXOxaKQzBEyzzG6ar8= X-Received: by 2002:a17:90b:915:b0:1ca:b584:8241 with SMTP id bo21-20020a17090b091500b001cab5848241mr30853251pjb.46.1649582046260; Sun, 10 Apr 2022 02:14:06 -0700 (PDT) MIME-Version: 1.0 From: Zheyu Ma Date: Sun, 10 Apr 2022 17:13:55 +0800 Message-ID: Subject: [BUG] ALSA: echoaudio: warning when the driver fails to probe To: perex@perex.cz, tiwai@suse.com Cc: alsa-devel@alsa-project.org, Linux Kernel Mailing List Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RDNS_NONE, SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, I found a bug in echoaudio.c. When the driver fails at the function snd_echo_create(), it should release resources requested before, otherwise we will get the following warning: [ 3.262866] remove_proc_entry: removing non-empty directory 'irq/21', leaking at least 'snd_indigodj' [ 3.263577] WARNING: CPU: 3 PID: 261 at fs/proc/generic.c:717 remove_proc_entry+0x389/0x3f0 [ 3.267098] RIP: 0010:remove_proc_entry+0x389/0x3f0 [ 3.269976] Call Trace: [ 3.269979] [ 3.269988] unregister_irq_proc+0x14c/0x170 [ 3.269997] irq_free_descs+0x94/0xe0 [ 3.270004] mp_unmap_irq+0xb6/0x100 [ 3.270011] acpi_unregister_gsi_ioapic+0x27/0x40 [ 3.270017] acpi_pci_irq_disable+0x1d3/0x320 [ 3.270025] pci_disable_device+0x1ad/0x380 [ 3.270034] pcim_release+0x566/0x6d0 [ 3.270046] devres_release_all+0x1f1/0x2c0 [ 3.270057] really_probe+0xe0/0x920 Regards, Zheyu Ma