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=-19.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 C3180C432BE for ; Tue, 24 Aug 2021 17:38:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AB9A8610D1 for ; Tue, 24 Aug 2021 17:38:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241971AbhHXRiq (ORCPT ); Tue, 24 Aug 2021 13:38:46 -0400 Received: from mail.kernel.org ([198.145.29.99]:39996 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242436AbhHXRfQ (ORCPT ); Tue, 24 Aug 2021 13:35:16 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 274C661BD4; Tue, 24 Aug 2021 17:06:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1629824812; bh=E2ygH9DV6fEypzWOtd0/Y+SjmyPH3h6NMnirsCCkazU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=br0DbQAOl6CAu304JlAudrlA+uphdL1Pnc9EIpZox3061XZAzTxGnPHTl1rge8uEW fSDaksdicIaiICoQvKDQFn3snVc0Y3DZwHrqJ1SFJF1RDaxl2SpKS91qcH4vrPNpem PopMJI7CQehCTzj9L8E4Fd0UA5HnoEtcYkqwxyiJgrUMf8lU+y1TMS0lfG1/ewbeUs EDMK31jWgwpQe9DgUPIxQVCeYyZkQQrusA85nMd6Ox7P0POdf382fPfCfpI2M5rHJl QMn1TZcFCLDUVYLUqVOkRyJ0HPyLVdi9OdxgCIoT//ufMDR10+R2IWZQVH2OA53mW9 mYvYDOWvDkyjA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jaroslav Kysela , stable@kernel.org, Takashi Iwai , Sasha Levin Subject: [PATCH 4.9 37/43] ALSA: hda - fix the 'Capture Switch' value change notifications Date: Tue, 24 Aug 2021 13:06:08 -0400 Message-Id: <20210824170614.710813-38-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210824170614.710813-1-sashal@kernel.org> References: <20210824170614.710813-1-sashal@kernel.org> MIME-Version: 1.0 X-KernelTest-Patch: http://kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.9.281-rc1.gz X-KernelTest-Tree: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git X-KernelTest-Branch: linux-4.9.y X-KernelTest-Patches: git://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git X-KernelTest-Version: 4.9.281-rc1 X-KernelTest-Deadline: 2021-08-26T17:06+00:00 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jaroslav Kysela [ Upstream commit a2befe9380dd04ee76c871568deca00eedf89134 ] The original code in the cap_put_caller() function does not handle correctly the positive values returned from the passed function for multiple iterations. It means that the change notifications may be lost. Fixes: 352f7f914ebb ("ALSA: hda - Merge Realtek parser code to generic parser") BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=213851 Cc: Signed-off-by: Jaroslav Kysela Link: https://lore.kernel.org/r/20210811161441.1325250-1-perex@perex.cz Signed-off-by: Takashi Iwai Signed-off-by: Sasha Levin --- sound/pci/hda/hda_generic.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c index 8d99ac931ff6..c29f7ff5ccd2 100644 --- a/sound/pci/hda/hda_generic.c +++ b/sound/pci/hda/hda_generic.c @@ -3421,7 +3421,7 @@ static int cap_put_caller(struct snd_kcontrol *kcontrol, struct hda_gen_spec *spec = codec->spec; const struct hda_input_mux *imux; struct nid_path *path; - int i, adc_idx, err = 0; + int i, adc_idx, ret, err = 0; imux = &spec->input_mux; adc_idx = kcontrol->id.index; @@ -3431,9 +3431,13 @@ static int cap_put_caller(struct snd_kcontrol *kcontrol, if (!path || !path->ctls[type]) continue; kcontrol->private_value = path->ctls[type]; - err = func(kcontrol, ucontrol); - if (err < 0) + ret = func(kcontrol, ucontrol); + if (ret < 0) { + err = ret; break; + } + if (ret > 0) + err = 1; } mutex_unlock(&codec->control_mutex); if (err >= 0 && spec->cap_sync_hook) -- 2.30.2