From patchwork Sun Aug 20 17:26:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Takashi Iwai X-Patchwork-Id: 715210 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 DBAD6EE4993 for ; Sun, 20 Aug 2023 17:28:03 +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 78805832; Sun, 20 Aug 2023 19:27:11 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 78805832 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1692552481; bh=E+rG+y3KyQjwb92YcmTkoKd81VxV1fBXQjjzli7dc+Y=; h=From:To:Cc:Subject:Date:List-Id:List-Archive:List-Help:List-Owner: List-Post:List-Subscribe:List-Unsubscribe:From; b=rZ4/H/dyeYnQvUVGXla41P4Ti5szPRN9n7pmiyLM/lvKg2KA5TtK+kR7MelhTmnUn w1Br4PIO3FMFLPqYAwRcYQLEAEsXsOvuC5ova/b9nDCtNCBYJ2oY5OuyefuSkKihpg yhSdSh88tVIQWNPKBRIlk3eeJopShOwUIyiGPjtk= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 37727F800D1; Sun, 20 Aug 2023 19:26:49 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id B647DF800D1; Sun, 20 Aug 2023 19:26:48 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 8F16DF8025E; Sun, 20 Aug 2023 19:26:44 +0200 (CEST) Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id A51FFF80027 for ; Sun, 20 Aug 2023 19:26:39 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz A51FFF80027 Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key, unprotected) header.d=suse.de header.i=@suse.de header.a=rsa-sha256 header.s=susede2_rsa header.b=oQvDLt2s; dkim=pass header.d=suse.de header.i=@suse.de header.a=ed25519-sha256 header.s=susede2_ed25519 header.b=HqLrW5gE Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id CBB3521EA0; Sun, 20 Aug 2023 17:26:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1692552398; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=PoZC8rXPlgPkYbuTVDflly5I84x5NCR4lZUzklACRKk=; b=oQvDLt2s/aFt9KisfN33bw4vqBq0o1sy6JNWTUJ6Sav/fdQQzeTLP3VnR6JyslHptL4X/L 1dhkiHiSlSvFB6a2Xp0rjeGOJQdoydJyS1B8sWoxMNi5sXTf10B1lyCWMoXL3jFsPF2Mfp dW3nbUc2UCULzFgGf8hlO3nn3OLH7b0= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1692552398; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=PoZC8rXPlgPkYbuTVDflly5I84x5NCR4lZUzklACRKk=; b=HqLrW5gEtMTtjRO1Vf4qAWriO881MLBaPSZMs5wKoqDdsyhDrsPh5VSRf/fMXA7yf8iEUE HjHyJPFePjMf58Cw== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id A32EF133F7; Sun, 20 Aug 2023 17:26:38 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id bk7UJs5M4mTjZgAAMHmgww (envelope-from ); Sun, 20 Aug 2023 17:26:38 +0000 From: Takashi Iwai To: alsa-devel@alsa-project.org Cc: Pierre-Louis Bossart , Shenghao Ding Subject: [PATCH 1/2] ALSA: hda/tas2781: Fix acpi device refcount leak at tas2781_read_acpi() Date: Sun, 20 Aug 2023 19:26:34 +0200 Message-Id: <20230820172635.22236-1-tiwai@suse.de> X-Mailer: git-send-email 2.35.3 MIME-Version: 1.0 Message-ID-Hash: DDD5BI4JJ2AEZ5XAVOZSDJ2WXZPZM6V4 X-Message-ID-Hash: DDD5BI4JJ2AEZ5XAVOZSDJ2WXZPZM6V4 X-MailFrom: tiwai@suse.de X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: The error path at tas2781_read_acpi() doesn't release the acpi_device adev but releases another device physdev instead. This results in a refcount leak. Fix it by replacing with the right object. Fixes: 5be27f1e3ec9 ("ALSA: hda/tas2781: Add tas2781 HDA driver") Reported-by: Pierre-Louis Bossart Closes: https://lore.kernel.org/r/9f910785-e856-1539-e3e4-c9817af5fe67@linux.intel.com Signed-off-by: Takashi Iwai --- sound/pci/hda/tas2781_hda_i2c.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/hda/tas2781_hda_i2c.c b/sound/pci/hda/tas2781_hda_i2c.c index 35dafc4aec4f..0968ae915fd0 100644 --- a/sound/pci/hda/tas2781_hda_i2c.c +++ b/sound/pci/hda/tas2781_hda_i2c.c @@ -118,7 +118,7 @@ static int tas2781_read_acpi(struct tasdevice_priv *p, const char *hid) err: dev_err(p->dev, "read acpi error, ret: %d\n", ret); - put_device(physdev); + acpi_dev_put(adev); return ret; }