From patchwork Tue Oct 15 13:13:37 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yuan Can X-Patchwork-Id: 13836427 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 D473B1B2185; Tue, 15 Oct 2024 13:18:09 +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=1728998292; cv=none; b=WBJSMFTR/memvYiY1F1pfaC+Al45x7qpLmogOLSG4iZFHIPBeIjestQ2sb6Q4o4JFafFzDHFkSJpaGEsYwE8sqfncHXpHBB0QtTn2UlJOA27ar1tcUj7Tf+F4tahoqnwYK3AJaDOhMrZYNSoGDYooo1aLqUfEiTQE23yBle36vI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728998292; c=relaxed/simple; bh=VNySIiZ7c3IG0aHf8oREvKMaNBVY+7BMcz1RyC5A3Ak=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=sEmFsz+hUqOWOfzh3qC3LBn92/fXPiWYGXajp3Nkl164T/meFdhTgfinHobTPpvCz3KaiZyvm/XD4pPTkW7NyLcuU62egA7+vjNKkSppzSXwKjEJfBCIiR1YmY9pmVtApmxi3ww4NqDNaIoalsL+UwjIpFXrGvhon2ibnrpZXRs= 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 [172.19.162.112]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4XSZPd4bPMz1gx2L; Tue, 15 Oct 2024 21:16:53 +0800 (CST) Received: from dggpeml500024.china.huawei.com (unknown [7.185.36.10]) by mail.maildlp.com (Postfix) with ESMTPS id 4E6801400D4; Tue, 15 Oct 2024 21:18:07 +0800 (CST) Received: from huawei.com (10.175.112.208) by dggpeml500024.china.huawei.com (7.185.36.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Tue, 15 Oct 2024 21:18:06 +0800 From: Yuan Can To: , , , , , , CC: Subject: [PATCH] cpufreq: loongson2: Unregister platform_driver on failure Date: Tue, 15 Oct 2024 21:13:37 +0800 Message-ID: <20241015131337.20159-1-yuancan@huawei.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpeml500024.china.huawei.com (7.185.36.10) When cpufreq_register_driver() returns error, the cpufreq_init() returns without unregister platform_driver, fix by add missing platform_driver_unregister() when cpufreq_register_driver() failed. Fixes: f8ede0f700f5 ("MIPS: Loongson 2F: Add CPU frequency scaling support") Signed-off-by: Yuan Can --- drivers/cpufreq/loongson2_cpufreq.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c index 6a8e97896d38..1291db067559 100644 --- a/drivers/cpufreq/loongson2_cpufreq.c +++ b/drivers/cpufreq/loongson2_cpufreq.c @@ -153,6 +153,9 @@ static int __init cpufreq_init(void) cpu_wait = loongson2_cpu_wait; } + if (ret) + platform_driver_unregister(&platform_driver); + return ret; }