From patchwork Mon Feb 28 05:02:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Meng Tang X-Patchwork-Id: 12762377 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 4F1FBC433EF for ; Mon, 28 Feb 2022 05:04:11 +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 73E3616FE; Mon, 28 Feb 2022 06:03:19 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 73E3616FE DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1646024649; bh=FdOYa+LEomGd82cf4oEJt1f3p762ZODo5r7rHfRdrJs=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=YHPAPkM4m1AvLIq1XLpJb2+6PCnNy7KiPZXqlOx4eBSjugWXk7lFy2lLOoc7OrCtT 8jX0qOl4vppt8GrOJv4d8gQORqYJlZWNs6qqODpD6WCxgje8ZuT+P/NURB1Rv4EiKm b1SVRt1pHQbDglrdIMX7H9jOKxkGcNC8t/tFob8Y= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 1D91FF80128; Mon, 28 Feb 2022 06:03:19 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 83B53F80154; Mon, 28 Feb 2022 06:03:17 +0100 (CET) Received: from smtpbgeu2.qq.com (smtpbgeu2.qq.com [18.194.254.142]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 3A7C0F80125 for ; Mon, 28 Feb 2022 06:03:10 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 3A7C0F80125 X-QQ-mid: bizesmtp89t1646024586thfoje1b Received: from localhost.localdomain (unknown [58.240.82.166]) by bizesmtp.qq.com (ESMTP) with id ; Mon, 28 Feb 2022 13:03:03 +0800 (CST) X-QQ-SSF: 01400000002000C0F000B00A0000000 X-QQ-FEAT: F3yR32iATbg9d5KYQoSp6pbqoXLzpCAtG22FQb/l2d/WkjkQ8W2X83f0xqELi ioPVP2wdmyr+G9ms9m4klr5ImSsOwKlK9kljCNPU+W8BsEomi5gA7urgpjE8PxUUSi/7ZGx kFMIpTZ/0Hb6SoMWZVRuMhcbMjbCKISv+EFwLq1RO8bZEsedwO96RUfe4Z0uVr8RA4fb3J8 jNyGaUjArZjHt808yF8FhsqAQU1JW3jNqqJEp4tF670bUJANIY29fNeMhL/AbPPsu365Nwb tIcvfX54Ah8Lc+vofq9eBCsdNTPFrkiH7u67Q/VKQwo80BetBDI47mo1aHj73Ayas0tlp01 X6OIN1ITReTYFjWmbHIV8h+vCC7gI1OEfRmjTUBE/cxJRyvAL8= X-QQ-GoodBg: 2 From: Meng Tang To: perex@perex.cz, tiwai@suse.com Subject: [PATCH v4 2/2] ALSA: core: Remove redundant variable and return the last statement Date: Mon, 28 Feb 2022 13:02:53 +0800 Message-Id: <20220228050253.1649-2-tangmeng@uniontech.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20220228050253.1649-1-tangmeng@uniontech.com> References: <20220228050253.1649-1-tangmeng@uniontech.com> MIME-Version: 1.0 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:uniontech.com:qybgforeign:qybgforeign7 X-QQ-Bgrelay: 1 Cc: Joe Perches , Meng Tang , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org 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" Return the result from file->f_op->open() directly instead of taking this in another redundant variable. Make the typical return the last statement, return early and reduce the indentation too. Signed-off-by: Meng Tang Signed-off-by: Joe Perches --- sound/sound_core.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/sound/sound_core.c b/sound/sound_core.c index aa4a57e488e5..3332fe321737 100644 --- a/sound/sound_core.c +++ b/sound/sound_core.c @@ -577,20 +577,20 @@ static int soundcore_open(struct inode *inode, struct file *file) new_fops = fops_get(s->unit_fops); } spin_unlock(&sound_loader_lock); - if (new_fops) { - /* - * We rely upon the fact that we can't be unloaded while the - * subdriver is there. - */ - int err = 0; - replace_fops(file, new_fops); - if (file->f_op->open) - err = file->f_op->open(inode,file); + if (!new_fops) + return -ENODEV; - return err; - } - return -ENODEV; + /* + * We rely upon the fact that we can't be unloaded while the + * subdriver is there. + */ + replace_fops(file, new_fops); + + if (!file->f_op->open) + return -ENODEV; + + return file->f_op->open(inode, file); } MODULE_ALIAS_CHARDEV_MAJOR(SOUND_MAJOR);