From patchwork Thu Nov 7 03:26:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huisong Li X-Patchwork-Id: 13865770 Received: from szxga07-in.huawei.com (szxga07-in.huawei.com [45.249.212.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 68A84364D6; Thu, 7 Nov 2024 03:37:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.35 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730950653; cv=none; b=vCn0Vwce7LicmGgiyE3322DLVDhK413/sZ1me95cez1fR2iym1z5OHTHV5YwH2+Bri9JQNQMtRWYZ3+PZeSpeSkhdIPBHUBQE4kXY6E2TkIa9QagqeJL9uRUSCHIkJsZaaJzz2iByLm8LfNpv9IyEXsMl+rvMIW4s+b1aaPIUs0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730950653; c=relaxed/simple; bh=NwOubgdHIIpjYC991G4+DrMfD8Gc/C2T1lYTvXvcmLY=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=YPvd3VhgYsBOB6VynIXmy6+RFnwbtP1zYmyR5rA2Z45cRf0azsilCT3rUHn79JXY05l06ROVtTQFj61xEf9HYHhnNnw7n/Mq//ZVdwnKla1DZzINBanS8Dp7V7YeJSkZHs0c97+4lpqmLr3Vzdvu1UcwUuqobtjV+TEFAaewRho= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.35 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.88.234]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4XkSQS1GwXz1SG9b; Thu, 7 Nov 2024 11:35:44 +0800 (CST) Received: from dggemv711-chm.china.huawei.com (unknown [10.1.198.66]) by mail.maildlp.com (Postfix) with ESMTPS id B4E601401F4; Thu, 7 Nov 2024 11:37:26 +0800 (CST) Received: from kwepemn100009.china.huawei.com (7.202.194.112) by dggemv711-chm.china.huawei.com (10.1.198.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Thu, 7 Nov 2024 11:37:26 +0800 Received: from localhost.localdomain (10.28.79.22) by kwepemn100009.china.huawei.com (7.202.194.112) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Thu, 7 Nov 2024 11:37:25 +0800 From: Huisong Li To: , CC: , , , Subject: [PATCH v1 2/2] hwmon: (acpi_power_meter) Fix fail to load module on platform without _PMD method Date: Thu, 7 Nov 2024 11:26:26 +0800 Message-ID: <20241107032626.16682-3-lihuisong@huawei.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20241107032626.16682-1-lihuisong@huawei.com> References: <20241107032626.16682-1-lihuisong@huawei.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemn100009.china.huawei.com (7.202.194.112) As ACPI spec said, _PMD method is optional. The acpi_power_meter shouldn't fail to load when the platform hasn't _PMD method. Signed-off-by: Huisong Li --- drivers/hwmon/acpi_power_meter.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c index 6c8a9c863528..2f1c9d97ad21 100644 --- a/drivers/hwmon/acpi_power_meter.c +++ b/drivers/hwmon/acpi_power_meter.c @@ -680,8 +680,9 @@ static int setup_attrs(struct acpi_power_meter_resource *resource) { int res = 0; + /* _PMD method is optional. */ res = read_domain_devices(resource); - if (res) + if (res != -ENODEV) return res; if (resource->caps.flags & POWER_METER_CAN_MEASURE) {