From patchwork Thu Aug 24 13:28:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Ilpo_J=C3=A4rvinen?= X-Patchwork-Id: 13364201 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 845B4C71145 for ; Thu, 24 Aug 2023 13:43:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235735AbjHXNms (ORCPT ); Thu, 24 Aug 2023 09:42:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35652 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241491AbjHXNm0 (ORCPT ); Thu, 24 Aug 2023 09:42:26 -0400 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 18B2C19BD; Thu, 24 Aug 2023 06:42:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1692884521; x=1724420521; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Nen7yQELC0i9x/FB23xTRuNIW8tVu0uF/NbwWIleIu4=; b=BqYJSA8WDVraEkVQbNODe7dxaWpcr2HWDqWKjOL5dQy6KR+rC86bmFIi +odKczdEsv5fpdH2DoTMeo1HptQjCiWOfY8d2cpFTvLLLd1tAXrJTXuAE qC/hmRKOt9uE3RU6IV5aoKQfv7HA1vQNxiRHRCCeDG/cw2SPkb++VN1iC TP2TD8mzmJHMLysmoTKCjp83BOb2CnIZ9CcdYukGzeW9Bdkz/RQmSxFng r7SqYPmDwsD4VU9xpPDIIjVjx61YZ2iBEVvUizHZv8EAFiM/ECQIMoDr+ p5aLpskuschb8pWXWWN8S76AmbUzwUWGcOKePHTjQB4w6rqcTdlsJ4ly1 w==; X-IronPort-AV: E=McAfee;i="6600,9927,10812"; a="440792634" X-IronPort-AV: E=Sophos;i="6.02,195,1688454000"; d="scan'208";a="440792634" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Aug 2023 06:29:36 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10812"; a="802540120" X-IronPort-AV: E=Sophos;i="6.02,195,1688454000"; d="scan'208";a="802540120" Received: from abedekar-mobl1.ger.corp.intel.com (HELO ijarvine-mobl2.ger.corp.intel.com) ([10.251.213.29]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Aug 2023 06:29:34 -0700 From: =?utf-8?q?Ilpo_J=C3=A4rvinen?= To: linux-pci@vger.kernel.org, Bjorn Helgaas , Jean Delvare , Guenter Roeck , linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org Cc: =?utf-8?q?Ilpo_J=C3=A4rvinen?= Subject: [PATCH 13/14] hwmon: (sis5595) Do PCI error checks on own line Date: Thu, 24 Aug 2023 16:28:31 +0300 Message-Id: <20230824132832.78705-14-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230824132832.78705-1-ilpo.jarvinen@linux.intel.com> References: <20230824132832.78705-1-ilpo.jarvinen@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org Instead of if conditions with line splits, use the usual error handling pattern with a separate variable to improve readability. Handle error print with a label instead of trying to chain everything into a single if condtion. No functional changes intended. Signed-off-by: Ilpo Järvinen --- drivers/hwmon/sis5595.c | 35 ++++++++++++++++++++--------------- 1 file changed, 20 insertions(+), 15 deletions(-) diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c index b0b05fd12221..0a0479501e11 100644 --- a/drivers/hwmon/sis5595.c +++ b/drivers/hwmon/sis5595.c @@ -798,7 +798,7 @@ static int sis5595_pci_probe(struct pci_dev *dev, { u16 address; u8 enable; - int *i; + int *i, err; for (i = blacklist; *i != 0; i++) { struct pci_dev *d; @@ -818,8 +818,8 @@ static int sis5595_pci_probe(struct pci_dev *dev, pci_write_config_word(dev, SIS5595_BASE_REG, force_addr); } - if (PCIBIOS_SUCCESSFUL != - pci_read_config_word(dev, SIS5595_BASE_REG, &address)) { + err = pci_read_config_word(dev, SIS5595_BASE_REG, &address); + if (err != PCIBIOS_SUCCESSFUL) { dev_err(&dev->dev, "Failed to read ISA address\n"); return -ENODEV; } @@ -836,22 +836,23 @@ static int sis5595_pci_probe(struct pci_dev *dev, return -ENODEV; } - if (PCIBIOS_SUCCESSFUL != - pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable)) { + err = pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable); + if (err != PCIBIOS_SUCCESSFUL) { dev_err(&dev->dev, "Failed to read enable register\n"); return -ENODEV; } if (!(enable & 0x80)) { - if ((PCIBIOS_SUCCESSFUL != - pci_write_config_byte(dev, SIS5595_ENABLE_REG, - enable | 0x80)) - || (PCIBIOS_SUCCESSFUL != - pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable)) - || (!(enable & 0x80))) { - /* doesn't work for some chips! */ - dev_err(&dev->dev, "Failed to enable HWM device\n"); - return -ENODEV; - } + err = pci_write_config_byte(dev, SIS5595_ENABLE_REG, enable | 0x80); + if (err != PCIBIOS_SUCCESSFUL) + goto enable_fail; + + err = pci_read_config_byte(dev, SIS5595_ENABLE_REG, &enable); + if (err != PCIBIOS_SUCCESSFUL) + goto enable_fail; + + /* doesn't work for some chips! */ + if (!(enable & 0x80)) + goto enable_fail; } if (platform_driver_register(&sis5595_driver)) { @@ -871,6 +872,10 @@ static int sis5595_pci_probe(struct pci_dev *dev, */ return -ENODEV; +enable_fail: + dev_err(&dev->dev, "Failed to enable HWM device\n"); + goto exit; + exit_unregister: pci_dev_put(dev); platform_driver_unregister(&sis5595_driver);