From patchwork Wed Jan 17 15:25:40 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeffy Chen X-Patchwork-Id: 10169551 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id CA112603B5 for ; Wed, 17 Jan 2018 15:28:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B9691285A2 for ; Wed, 17 Jan 2018 15:28:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AD98A28610; Wed, 17 Jan 2018 15:28:34 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 36664285A2 for ; Wed, 17 Jan 2018 15:28:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=NBLUZJgW449RTYK+LvtpTPHOc/xJnazS+8aPm8PgB7g=; b=b193Y5CBs/0HlWaattW6jgM04c jUWOjlZLiFnnhv4GXVJFGop+FMZptz02kRGWn6taiRlwbF7z/BDdwd7jDYXcFjj3eH+CWmhEsqQb0 Tdk+drrs/NSuvrqQC5TQL6tb0ulDvinWR77zw99Iu5h6jqb8GTjLqMwrOyF/K9JgYS/uYwe7GHDAQ TxJkPHweKykJH1q8NKFCY4OV7dn/gwDHVzc/IPv8jfyymfdh9S5zcKQ/wU6CvlYeqqrNcyxbTEJNk HLMhh/ufuTg7YWcQJdajXEu6I0wRE0UaaG0vqq7CVl8MdxpElns1bwvqaM/FLPWQIOnHxJGQJZCTK sna9LRlA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.89 #1 (Red Hat Linux)) id 1ebpdf-0007TI-QU; Wed, 17 Jan 2018 15:28:31 +0000 Received: from regular1.263xmail.com ([211.150.99.136]) by bombadil.infradead.org with esmtps (Exim 4.89 #1 (Red Hat Linux)) id 1ebpcg-00067j-8C; Wed, 17 Jan 2018 15:27:56 +0000 Received: from jeffy.chen?rock-chips.com (unknown [192.168.167.131]) by regular1.263xmail.com (Postfix) with ESMTP id CAF5731; Wed, 17 Jan 2018 23:27:16 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost (localhost [127.0.0.1]) by smtp.263.net (Postfix) with ESMTPA id 37601308; Wed, 17 Jan 2018 23:27:14 +0800 (CST) X-RL-SENDER: jeffy.chen@rock-chips.com X-FST-TO: linux-kernel@vger.kernel.org X-SENDER-IP: 103.29.142.67 X-LOGIN-NAME: jeffy.chen@rock-chips.com X-UNIQUE-TAG: <96d81c51d0981fa007df3f61b0a10129> X-ATTACHMENT-NUM: 0 X-SENDER: cjf@rock-chips.com X-DNS-TYPE: 0 Received: from localhost (unknown [103.29.142.67]) by smtp.263.net (Postfix) whith ESMTP id 10815SLUZX3; Wed, 17 Jan 2018 23:27:17 +0800 (CST) From: Jeffy Chen To: linux-kernel@vger.kernel.org Subject: [PATCH v3 10/12] iommu/rockchip: Fix error handling in init Date: Wed, 17 Jan 2018 23:25:40 +0800 Message-Id: <20180117152542.26429-11-jeffy.chen@rock-chips.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180117152542.26429-1-jeffy.chen@rock-chips.com> References: <20180117152542.26429-1-jeffy.chen@rock-chips.com> X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: xxm@rock-chips.com, Joerg Roedel , Jeffy Chen , tfiga@chromium.org, jcliang@chromium.org, linux-rockchip@lists.infradead.org, iommu@lists.linux-foundation.org, robin.murphy@arm.com, linux-arm-kernel@lists.infradead.org, Heiko Stuebner MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP It's hard to undo bus_set_iommu() in the error path, so move it to the end of rk_iommu_probe(). Signed-off-by: Jeffy Chen Reviewed-by: Tomasz Figa --- Changes in v3: None Changes in v2: Move bus_set_iommu() to rk_iommu_probe(). drivers/iommu/rockchip-iommu.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c index b1f177ae03c7..2c095f96c033 100644 --- a/drivers/iommu/rockchip-iommu.c +++ b/drivers/iommu/rockchip-iommu.c @@ -1195,6 +1195,8 @@ static int rk_iommu_probe(struct platform_device *pdev) if (!dma_dev) dma_dev = &pdev->dev; + bus_set_iommu(&platform_bus_type, &rk_iommu_ops); + return 0; err_remove_sysfs: iommu_device_sysfs_remove(&iommu->iommu); @@ -1220,19 +1222,6 @@ static struct platform_driver rk_iommu_driver = { static int __init rk_iommu_init(void) { - struct device_node *np; - int ret; - - np = of_find_matching_node(NULL, rk_iommu_dt_ids); - if (!np) - return 0; - - of_node_put(np); - - ret = bus_set_iommu(&platform_bus_type, &rk_iommu_ops); - if (ret) - return ret; - return platform_driver_register(&rk_iommu_driver); } subsys_initcall(rk_iommu_init);