From patchwork Wed Sep 4 12:36:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: lizetao X-Patchwork-Id: 13790755 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) (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 93A831D9D99; Wed, 4 Sep 2024 12:27:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.187 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725452866; cv=none; b=q6zAszjv7AG49GGrv2ld4pUTnDeJxgSGXuLKD3b+8Sr+0Gd8+Hp4ZTV8Fmwrr/uQNNccg9+lT797uai+DP1fllrxQ0bhYhB3HW0cK6TXpqryL2HRnsGLiOxgdx/T1iTd3rUCB1ybj93qqMo5oU4wBrbwK6rz3gGptLvOOFRP8SE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725452866; c=relaxed/simple; bh=DTGh/1q2Odz1hSV0DApGpB4BaW6tTQi2v8++uFKMFq8=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=ZSdfDc+EgkrFl0JocBKdV1fuJ+5pHJZ7AzS3II3qDIhZVRytMMXdVnhxefyBzwlA8ViFqYfCPYrSIysKGpYB3F8bpMsAqaPEcK0AjbV/HoSP2V2jjnItycvu9MCoJogJmsBGsvZkFpF9SIMES693jxohxMu27OeWgSPtXVxH5Ls= 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=45.249.212.187 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 [172.19.88.105]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4WzMDh6j4CzyR68; Wed, 4 Sep 2024 20:26:44 +0800 (CST) Received: from kwepemd500012.china.huawei.com (unknown [7.221.188.25]) by mail.maildlp.com (Postfix) with ESMTPS id AE795140137; Wed, 4 Sep 2024 20:27:42 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemd500012.china.huawei.com (7.221.188.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.34; Wed, 4 Sep 2024 20:27:41 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , CC: , , , Subject: [PATCH -next 19/19] hwmon: (nzxt-smart2) Use devm_hid_hw_start_and_open in nzxt_smart2_hid_probe() Date: Wed, 4 Sep 2024 20:36:07 +0800 Message-ID: <20240904123607.3407364-20-lizetao1@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240904123607.3407364-1-lizetao1@huawei.com> References: <20240904123607.3407364-1-lizetao1@huawei.com> Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To kwepemd500012.china.huawei.com (7.221.188.25) Currently, the nzxt-smart2 module needs to maintain hid resources by itself. Consider using devm_hid_hw_start_and_open helper to ensure that hid resources are consistent with the device life cycle, and release hid resources before device is released. At the same time, it can avoid the goto-release encoding, drop the out_hw_close and out_hw_stop lables, and directly return the error code when an error occurs. Signed-off-by: Li Zetao --- drivers/hwmon/nzxt-smart2.c | 22 +++------------------- 1 file changed, 3 insertions(+), 19 deletions(-) diff --git a/drivers/hwmon/nzxt-smart2.c b/drivers/hwmon/nzxt-smart2.c index df6fa72a6b59..b5721a42c0d3 100644 --- a/drivers/hwmon/nzxt-smart2.c +++ b/drivers/hwmon/nzxt-smart2.c @@ -750,14 +750,10 @@ static int nzxt_smart2_hid_probe(struct hid_device *hdev, if (ret) return ret; - ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW); + ret = devm_hid_hw_start_and_open(hdev, HID_CONNECT_HIDRAW); if (ret) return ret; - ret = hid_hw_open(hdev); - if (ret) - goto out_hw_stop; - hid_device_io_start(hdev); init_device(drvdata, UPDATE_INTERVAL_DEFAULT_MS); @@ -765,19 +761,10 @@ static int nzxt_smart2_hid_probe(struct hid_device *hdev, drvdata->hwmon = hwmon_device_register_with_info(&hdev->dev, "nzxtsmart2", drvdata, &nzxt_smart2_chip_info, NULL); - if (IS_ERR(drvdata->hwmon)) { - ret = PTR_ERR(drvdata->hwmon); - goto out_hw_close; - } + if (IS_ERR(drvdata->hwmon)) + return PTR_ERR(drvdata->hwmon); return 0; - -out_hw_close: - hid_hw_close(hdev); - -out_hw_stop: - hid_hw_stop(hdev); - return ret; } static void nzxt_smart2_hid_remove(struct hid_device *hdev) @@ -785,9 +772,6 @@ static void nzxt_smart2_hid_remove(struct hid_device *hdev) struct drvdata *drvdata = hid_get_drvdata(hdev); hwmon_device_unregister(drvdata->hwmon); - - hid_hw_close(hdev); - hid_hw_stop(hdev); } static const struct hid_device_id nzxt_smart2_hid_id_table[] = {