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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D55EAC433EF for ; Mon, 25 Oct 2021 19:16:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B959F61078 for ; Mon, 25 Oct 2021 19:16:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234429AbhJYTTG (ORCPT ); Mon, 25 Oct 2021 15:19:06 -0400 Received: from mail.kernel.org ([198.145.29.99]:36400 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234559AbhJYTSk (ORCPT ); Mon, 25 Oct 2021 15:18:40 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 7BE2E61090; Mon, 25 Oct 2021 19:16:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1635189378; bh=3nzARtnUIwmZ7Ln1TUgyXOZPqMLx4g/YocxRcSV56RE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=w2zw8SX1zZwyN5uCq/B8VSlMjbBZjAL8A6lCo8XLTIzGgraOAsC8CHVBhaokCLO32 Q39uqX7Y0rAWCvd/nkQXklfReA+/GBVPiTRuxLGVZziQWI3+NykK831ciDzQYs9al+ Is7f+Q5vvU14glT3PBo73TDPqBRRBQphgWJBGHCQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Takashi Iwai , Mark Brown , Hans de Goede Subject: [PATCH 4.4 32/44] ASoC: DAPM: Fix missing kctl change notifications Date: Mon, 25 Oct 2021 21:14:13 +0200 Message-Id: <20211025190935.238114232@linuxfoundation.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211025190928.054676643@linuxfoundation.org> References: <20211025190928.054676643@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Takashi Iwai commit 5af82c81b2c49cfb1cad84d9eb6eab0e3d1c4842 upstream. The put callback of a kcontrol is supposed to return 1 when the value is changed, and this will be notified to user-space. However, some DAPM kcontrols always return 0 (except for errors), hence the user-space misses the update of a control value. This patch corrects the behavior by properly returning 1 when the value gets updated. Reported-and-tested-by: Hans de Goede Cc: Signed-off-by: Takashi Iwai Link: https://lore.kernel.org/r/20211006141712.2439-1-tiwai@suse.de Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- sound/soc/soc-dapm.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -2377,6 +2377,7 @@ static int snd_soc_dapm_set_pin(struct s const char *pin, int status) { struct snd_soc_dapm_widget *w = dapm_find_widget(dapm, pin, true); + int ret = 0; dapm_assert_locked(dapm); @@ -2389,13 +2390,14 @@ static int snd_soc_dapm_set_pin(struct s dapm_mark_dirty(w, "pin configuration"); dapm_widget_invalidate_input_paths(w); dapm_widget_invalidate_output_paths(w); + ret = 1; } w->connected = status; if (status == 0) w->force = 0; - return 0; + return ret; } /** @@ -3290,14 +3292,15 @@ int snd_soc_dapm_put_pin_switch(struct s { struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); const char *pin = (const char *)kcontrol->private_value; + int ret; if (ucontrol->value.integer.value[0]) - snd_soc_dapm_enable_pin(&card->dapm, pin); + ret = snd_soc_dapm_enable_pin(&card->dapm, pin); else - snd_soc_dapm_disable_pin(&card->dapm, pin); + ret = snd_soc_dapm_disable_pin(&card->dapm, pin); snd_soc_dapm_sync(&card->dapm); - return 0; + return ret; } EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch); @@ -3657,7 +3660,7 @@ static int snd_soc_dapm_dai_link_put(str w->params_select = ucontrol->value.enumerated.item[0]; - return 0; + return 1; } int snd_soc_dapm_new_pcm(struct snd_soc_card *card,