From patchwork Fri Jun 14 09:47:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 10994969 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 750591395 for ; Fri, 14 Jun 2019 10:10:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 63FC22842E for ; Fri, 14 Jun 2019 10:10:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 57CB628405; Fri, 14 Jun 2019 10:10:04 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7047428445 for ; Fri, 14 Jun 2019 10:10:03 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 9E8EC1873; Fri, 14 Jun 2019 12:09:11 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 9E8EC1873 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1560507001; bh=z8Lxm4/LKvNC+z6GPDKBSbbekkWxTA+zx+MPQh7Sy8A=; h=From:To:Date:In-Reply-To:References:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=CnJYkuYTx2BuhTA69s3+pc76aJtFrCiBUsFDtXv/rCWHYo5R3/0RXUNNzOF7+barn bAG1uZxlLkMG7wDKvqyszPnOVhrbCbYAPweW8OjE/K9nRmEiKbS/ToAjzhufh/hSqT NixjAZClEAcdOWZQB2zPavJ2rWxtR0UCKdY1CvUM= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 93C31F89730; Fri, 14 Jun 2019 12:07:35 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa1.perex.cz (Postfix, from userid 50401) id 0CAD7F89717; Fri, 14 Jun 2019 12:07:30 +0200 (CEST) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id C0F91F80794 for ; Fri, 14 Jun 2019 12:07:25 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz C0F91F80794 Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="ofyuCR5w" Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BDD462168B; Fri, 14 Jun 2019 09:48:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560505699; bh=jFu36D2rc2mLIqiJkTJO3lU5SCNFwL1AqltQ4iD1Xo4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ofyuCR5wcdB1L8eh/XlJTVGufFi3It0A/ZeVRfxeIesQ9zrVv6y9ylymF0w6XL3z0 nluZYDW03Gl2SLApb+KW8Fdh3d1T+EfqG3gFSEfvTsiyXgcwAUK06ChXS6RWAJB3tQ bpOUIKpov9NrgZUxgjMiM8BJV0szIbTR3MQqZpdg= From: Greg Kroah-Hartman To: Jaroslav Kysela , Takashi Iwai Date: Fri, 14 Jun 2019 11:47:55 +0200 Message-Id: <20190614094756.2965-4-gregkh@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190614094756.2965-1-gregkh@linuxfoundation.org> References: <20190614094756.2965-1-gregkh@linuxfoundation.org> MIME-Version: 1.0 Cc: alsa-devel@alsa-project.org, Timur Tabi , Xiubo Li , Greg Kroah-Hartman , Sascha Hauer , Liam Girdwood , Nicolin Chen , Mark Brown , NXP Linux Team , Pengutronix Kernel Team , Shawn Guo , Fabio Estevam Subject: [alsa-devel] [PATCH 4/5] sound: soc: fsl: no need to check return value of debugfs_create functions X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" X-Virus-Scanned: ClamAV using ClamSMTP When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Timur Tabi Cc: Nicolin Chen Cc: Xiubo Li Cc: Fabio Estevam Cc: Liam Girdwood Cc: Mark Brown Cc: Jaroslav Kysela Cc: Takashi Iwai Cc: Shawn Guo Cc: Sascha Hauer Cc: Pengutronix Kernel Team Cc: NXP Linux Team Cc: Signed-off-by: Greg Kroah-Hartman --- sound/soc/fsl/fsl_ssi.c | 4 +--- sound/soc/fsl/fsl_ssi.h | 8 +++----- sound/soc/fsl/fsl_ssi_dbg.c | 18 ++++-------------- sound/soc/fsl/imx-audmux.c | 10 ++-------- 4 files changed, 10 insertions(+), 30 deletions(-) diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index 09b2967befd9..fa862af25c1a 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -1582,9 +1582,7 @@ static int fsl_ssi_probe(struct platform_device *pdev) } } - ret = fsl_ssi_debugfs_create(&ssi->dbg_stats, dev); - if (ret) - goto error_asoc_register; + fsl_ssi_debugfs_create(&ssi->dbg_stats, dev); /* Initially configures SSI registers */ fsl_ssi_hw_init(ssi); diff --git a/sound/soc/fsl/fsl_ssi.h b/sound/soc/fsl/fsl_ssi.h index 0bdda608d414..db57cad80449 100644 --- a/sound/soc/fsl/fsl_ssi.h +++ b/sound/soc/fsl/fsl_ssi.h @@ -270,7 +270,6 @@ struct device; struct fsl_ssi_dbg { struct dentry *dbg_dir; - struct dentry *dbg_stats; struct { unsigned int rfrc; @@ -299,7 +298,7 @@ struct fsl_ssi_dbg { void fsl_ssi_dbg_isr(struct fsl_ssi_dbg *ssi_dbg, u32 sisr); -int fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg, struct device *dev); +void fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg, struct device *dev); void fsl_ssi_debugfs_remove(struct fsl_ssi_dbg *ssi_dbg); @@ -312,10 +311,9 @@ static inline void fsl_ssi_dbg_isr(struct fsl_ssi_dbg *stats, u32 sisr) { } -static inline int fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg, - struct device *dev) +static inline void fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg, + struct device *dev) { - return 0; } static inline void fsl_ssi_debugfs_remove(struct fsl_ssi_dbg *ssi_dbg) diff --git a/sound/soc/fsl/fsl_ssi_dbg.c b/sound/soc/fsl/fsl_ssi_dbg.c index 6f6294149476..2a20ee23dc52 100644 --- a/sound/soc/fsl/fsl_ssi_dbg.c +++ b/sound/soc/fsl/fsl_ssi_dbg.c @@ -126,25 +126,15 @@ static int fsl_ssi_stats_show(struct seq_file *s, void *unused) DEFINE_SHOW_ATTRIBUTE(fsl_ssi_stats); -int fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg, struct device *dev) +void fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg, struct device *dev) { ssi_dbg->dbg_dir = debugfs_create_dir(dev_name(dev), NULL); - if (!ssi_dbg->dbg_dir) - return -ENOMEM; - ssi_dbg->dbg_stats = debugfs_create_file("stats", 0444, - ssi_dbg->dbg_dir, ssi_dbg, - &fsl_ssi_stats_fops); - if (!ssi_dbg->dbg_stats) { - debugfs_remove(ssi_dbg->dbg_dir); - return -ENOMEM; - } - - return 0; + debugfs_create_file("stats", 0444, ssi_dbg->dbg_dir, ssi_dbg, + &fsl_ssi_stats_fops); } void fsl_ssi_debugfs_remove(struct fsl_ssi_dbg *ssi_dbg) { - debugfs_remove(ssi_dbg->dbg_stats); - debugfs_remove(ssi_dbg->dbg_dir); + debugfs_remove_recursive(ssi_dbg->dbg_dir); } diff --git a/sound/soc/fsl/imx-audmux.c b/sound/soc/fsl/imx-audmux.c index 04e59e66711d..b2351cd33b0f 100644 --- a/sound/soc/fsl/imx-audmux.c +++ b/sound/soc/fsl/imx-audmux.c @@ -141,17 +141,11 @@ static void audmux_debugfs_init(void) char buf[20]; audmux_debugfs_root = debugfs_create_dir("audmux", NULL); - if (!audmux_debugfs_root) { - pr_warning("Failed to create AUDMUX debugfs root\n"); - return; - } for (i = 0; i < MX31_AUDMUX_PORT7_SSI_PINS_7 + 1; i++) { snprintf(buf, sizeof(buf), "ssi%lu", i); - if (!debugfs_create_file(buf, 0444, audmux_debugfs_root, - (void *)i, &audmux_debugfs_fops)) - pr_warning("Failed to create AUDMUX port %lu debugfs file\n", - i); + debugfs_create_file(buf, 0444, audmux_debugfs_root, + (void *)i, &audmux_debugfs_fops); } }