From patchwork Fri May 26 09:31:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?VHJldm9yIFd1ICjlkLPmlofoia8p?= X-Patchwork-Id: 13256668 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 41C79C77B7C for ; Fri, 26 May 2023 09:33:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Php2gk20Dl68LC1A+pQrlshjEjmaMv0MfK5uJD8WlwM=; b=cFAwMnuMumUjY8 FR3o1f1SmxU06nPTka+EMwVQAivwy4oQTJyVflKSHU75Qr2GXyOkM+e5Zjc9vKAFvskFWNZJaIvdx NRgD4a4W+zO6khUkzJXk78+J/AxVcf5DV7jbvwNWdigT2c9qA2PRYNPuz9OFOycVGKArX6dVQGC4C HZpDk0KbDnGHmWz/047sXWrlyqnOUYfnsniSKIFVPXoweLR2UfZ+0JjtGICPMMokRQ2b3HprNllIC 3p3ONmWQP6nhAtns2ZTl5uIcROYSC2bZdUh3wwBBUT8Ytz5+hUjh/QIm+OK6gIm7v5fTdDLnHMywI 1dSToY6ZazFDJlG/DYqQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q2ToM-001okT-2F; Fri, 26 May 2023 09:32:38 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q2ToE-001oeF-0V; Fri, 26 May 2023 09:32:31 +0000 X-UUID: 3acd8fdefba811ed83ed1395ce914268-20230526 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=VLn1nwa0TPSZxy0/Uqf/fSCYjrakDuOkiQdrMrFOV3c=; b=LeWDVB5Vk6iBYSnb9TttkV6cPrH89kV6/SUP0kywQGz2tGUGhZnc6v9Y23B4AcdttSgewp0hvkDyIoOqNZCSFXsaYgN2WjOA4pvKnA5U2adVpf2oKkC749JOxGrVzjtSIlJyavEYjIk0QG1kRRPUL1dNKX/T/H3SVwg/apFpYnw=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.25,REQID:96b24166-29cb-47c6-9b00-2f74950108cb,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:95 X-CID-INFO: VERSION:1.1.25,REQID:96b24166-29cb-47c6-9b00-2f74950108cb,IP:0,URL :0,TC:0,Content:0,EDM:0,RT:0,SF:95,FILE:0,BULK:0,RULE:Spam_GS981B3D,ACTION :quarantine,TS:95 X-CID-META: VersionHash:d5b0ae3,CLOUDID:820f753c-de1e-4348-bc35-c96f92f1dcbb,B ulkID:230526173156K5PZNBY8,BulkQuantity:3,Recheck:0,SF:29|28|17|19|48|38,T C:nil,Content:0,EDM:-3,IP:nil,URL:0,File:nil,Bulk:40,QS:nil,BEC:nil,COL:0, OSI:0,OSA:0,AV:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-UUID: 3acd8fdefba811ed83ed1395ce914268-20230526 Received: from mtkmbs13n1.mediatek.inc [(172.21.101.193)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 2063635347; Fri, 26 May 2023 02:32:27 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Fri, 26 May 2023 17:31:52 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Fri, 26 May 2023 17:31:52 +0800 From: Trevor Wu To: , , , , , , , , CC: , , , , , , Subject: [PATCH v3 5/7] ASoC: soc-dapm.c: clean up debugfs for freed widget Date: Fri, 26 May 2023 17:31:48 +0800 Message-ID: <20230526093150.22923-6-trevor.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230526093150.22923-1-trevor.wu@mediatek.com> References: <20230526093150.22923-1-trevor.wu@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230526_023230_201960_E4CD89AA X-CRM114-Status: GOOD ( 13.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org When a widget is added to dapm via snd_soc_dapm_new_widgets, dapm_debugfs_add_widget is also called to create a corresponding debugfs file. However, when a widget is freed by snd_soc_dapm_free_widget, the corresponding debugfs is not cleared. As a result, the freed widget is still seen in the dapm directory. This patch adds dapm_debugfs_free_widget to free the debugfs of a specified widget, and it's called at snd_soc_dapm_free_widget to clean up the debugfs for freed widget. Signed-off-by: Trevor Wu Reviewed-by: Alexandre Mergnat --- sound/soc/soc-dapm.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index f2f04ce693a1..c65cc374bb3f 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -2216,6 +2216,16 @@ static void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) &dapm_widget_power_fops); } +static void dapm_debugfs_free_widget(struct snd_soc_dapm_widget *w) +{ + struct snd_soc_dapm_context *dapm = w->dapm; + + if (!dapm->debugfs_dapm || !w->name) + return; + + debugfs_lookup_and_remove(w->name, dapm->debugfs_dapm); +} + static void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) { debugfs_remove_recursive(dapm->debugfs_dapm); @@ -2232,6 +2242,10 @@ static inline void dapm_debugfs_add_widget(struct snd_soc_dapm_widget *w) { } +static inline void dapm_debugfs_free_widget(struct snd_soc_dapm_widget *w) +{ +} + static inline void dapm_debugfs_cleanup(struct snd_soc_dapm_context *dapm) { } @@ -2495,6 +2509,8 @@ void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w) dapm_free_path(p); } + dapm_debugfs_free_widget(w); + kfree(w->kcontrols); kfree_const(w->name); kfree_const(w->sname);