From patchwork Tue Aug 30 19:21:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Farber, Eliav" X-Patchwork-Id: 12959748 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 A8D3FC3DA6B for ; Tue, 30 Aug 2022 19:22:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231445AbiH3TWf (ORCPT ); Tue, 30 Aug 2022 15:22:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58914 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231416AbiH3TWe (ORCPT ); Tue, 30 Aug 2022 15:22:34 -0400 Received: from smtp-fw-6001.amazon.com (smtp-fw-6001.amazon.com [52.95.48.154]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 93CFA79A77; Tue, 30 Aug 2022 12:22:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1661887353; x=1693423353; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=7ifH3cIa9Vk5bt+LS9w+ApFk4pQIlZ4NAZMRDJUWzoU=; b=fKHkZp2T/Mj9NhXDxIzLqIS05Xl1CwTe+wWKLMYEkT1iJx6ITLNVPue7 ZZCh6KGnMUrFE/o7EKSaCez2fwBvYYNjWxTwy5M3Sctw4f/N2qG46vs3V ftmVxmHf4n8bWZNyk0sZ4UnnyaMU4jHfGuKrmsypVJ2XlKDaoU7aRTsmA I=; Received: from iad12-co-svc-p1-lb1-vlan2.amazon.com (HELO email-inbound-relay-pdx-2a-e6c05252.us-west-2.amazon.com) ([10.43.8.2]) by smtp-border-fw-6001.iad6.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Aug 2022 19:22:18 +0000 Received: from EX13D37EUA001.ant.amazon.com (pdx1-ws-svc-p6-lb9-vlan2.pdx.amazon.com [10.236.137.194]) by email-inbound-relay-pdx-2a-e6c05252.us-west-2.amazon.com (Postfix) with ESMTPS id 13A8344E0E; Tue, 30 Aug 2022 19:22:17 +0000 (UTC) Received: from EX13MTAUEE002.ant.amazon.com (10.43.62.24) by EX13D37EUA001.ant.amazon.com (10.43.165.212) with Microsoft SMTP Server (TLS) id 15.0.1497.38; Tue, 30 Aug 2022 19:22:15 +0000 Received: from dev-dsk-farbere-1a-46ecabed.eu-west-1.amazon.com (172.19.116.181) by mail-relay.amazon.com (10.43.62.224) with Microsoft SMTP Server id 15.0.1497.38 via Frontend Transport; Tue, 30 Aug 2022 19:22:14 +0000 Received: by dev-dsk-farbere-1a-46ecabed.eu-west-1.amazon.com (Postfix, from userid 14301484) id 659724D45; Tue, 30 Aug 2022 19:22:12 +0000 (UTC) From: Eliav Farber To: , , , , , , , CC: , , , , , , , , , , , , , Subject: [PATCH v3 02/19] hwmon: (mr75203) fix VM sensor allocation when "intel,vm-map" not defined Date: Tue, 30 Aug 2022 19:21:55 +0000 Message-ID: <20220830192212.28570-3-farbere@amazon.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220830192212.28570-1-farbere@amazon.com> References: <20220830192212.28570-1-farbere@amazon.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org Bug fix - in case "intel,vm-map" is missing in device-tree ,'num' is set to 0, and no voltage channel infos are allocated. Signed-off-by: Eliav Farber --- drivers/hwmon/mr75203.c | 28 ++++++++++++---------------- 1 file changed, 12 insertions(+), 16 deletions(-) diff --git a/drivers/hwmon/mr75203.c b/drivers/hwmon/mr75203.c index 046523d47c29..0e29877a1a9c 100644 --- a/drivers/hwmon/mr75203.c +++ b/drivers/hwmon/mr75203.c @@ -580,8 +580,6 @@ static int mr75203_probe(struct platform_device *pdev) } if (vm_num) { - u32 num = vm_num; - ret = pvt_get_regmap(pdev, "vm", pvt); if (ret) return ret; @@ -594,30 +592,28 @@ static int mr75203_probe(struct platform_device *pdev) ret = device_property_read_u8_array(dev, "intel,vm-map", pvt->vm_idx, vm_num); if (ret) { - num = 0; + /* + * Incase intel,vm-map property is not defined, we + * assume incremental channel numbers. + */ + for (i = 0; i < vm_num; i++) + pvt->vm_idx[i] = i; } else { for (i = 0; i < vm_num; i++) if (pvt->vm_idx[i] >= vm_num || - pvt->vm_idx[i] == 0xff) { - num = i; + pvt->vm_idx[i] == 0xff) break; - } - } - /* - * Incase intel,vm-map property is not defined, we assume - * incremental channel numbers. - */ - for (i = num; i < vm_num; i++) - pvt->vm_idx[i] = i; + vm_num = i; + } - in_config = devm_kcalloc(dev, num + 1, + in_config = devm_kcalloc(dev, vm_num + 1, sizeof(*in_config), GFP_KERNEL); if (!in_config) return -ENOMEM; - memset32(in_config, HWMON_I_INPUT, num); - in_config[num] = 0; + memset32(in_config, HWMON_I_INPUT, vm_num); + in_config[vm_num] = 0; pvt_in.config = in_config; pvt_info[index++] = &pvt_in;