From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1133089-1521804818-2-12935964075302245540 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.25, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='org', MailFrom='org' X-Spam-charsets: plain='UTF-8' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1521804817; b=Y6VzxMWIEioypC5EeK7UW9Plwlu2pePOnjEwQyTH6esmQsh 38ZXdMETvC2SVzxMWNwQR0fIM+bp8LMA9PuxHiCxi2JuAMG8ZEO1izBsGrUkx0eY ALUzI0wUwqxQV7nXGWMEfzk5R2m2FOs5lhOPKBwyultueVAJEHWjhPCPNd3G+rwR dI1sSZXav6uLI+5ll9jBHGv23lfWsd8uGczZ5+5EljxXfOjZ+twdfgqm6zgYrKhd J1MdpIE2kA+RiKvtfFlOvgYcgVyGuBC16PnCfpr/U1AfTboO3QuoaxFhos+ro1Nn vt+VlBIkR+89g1Sswe1q8iEQwsjLoi8RH2yb6tA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-type:sender :list-id; s=arctest; t=1521804817; bh=VGRbTcCGSIergrd3b+dbU+N/sW 73tGsPv0FG5meewVk=; b=pl3Wg0ooDeb/XBVuPWjks9nz6831edVgaH96qHUqri TQddm4+hGos3eQF8DJGJqVyv6m3P9XGHZG85Dvi78/k9ralmWtg1vcafA6aYUS0Y YF2cLwzriP14vDgopu7hrjp/8nL7u0Lgg/S/L7mo1++YFgFk1MAmEvQ4E+QCzf49 wfu48bxpBrgqTxjObE7jjsuD7igb3dS/icORMZ4obgL38FqefGlJBjn44DRRuPMx UZUtNLkRWQTJlJrI8OlT58zfUjQx5FVXIDODhWmA+IraKxglGCTy/SOEfz7c3WK0 svYi+vLpncO6r/8NKF26P/sJMjWmGXewdlmsQD0KUEuw== ARC-Authentication-Results: i=1; mx5.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 Authentication-Results: mx5.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 X-ME-VSCategory: clean Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754608AbeCWKFg (ORCPT ); Fri, 23 Mar 2018 06:05:36 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:39754 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755009AbeCWKFc (ORCPT ); Fri, 23 Mar 2018 06:05:32 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Suman Anna , Joerg Roedel , Sasha Levin Subject: [PATCH 4.9 038/177] iommu/omap: Register driver before setting IOMMU ops Date: Fri, 23 Mar 2018 10:52:46 +0100 Message-Id: <20180323094206.830518180@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180323094205.090519271@linuxfoundation.org> References: <20180323094205.090519271@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Suman Anna [ Upstream commit abaa7e5b054aae567861628b74dbc7fbf8ed79e8 ] Move the registration of the OMAP IOMMU platform driver before setting the IOMMU callbacks on the platform bus. This causes the IOMMU devices to be probed first before the .add_device() callback is invoked for all registered devices, and allows the iommu_group support to be added to the OMAP IOMMU driver. While at this, also check for the return status from bus_set_iommu. Signed-off-by: Suman Anna Signed-off-by: Joerg Roedel Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/iommu/omap-iommu.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) --- a/drivers/iommu/omap-iommu.c +++ b/drivers/iommu/omap-iommu.c @@ -1299,6 +1299,7 @@ static int __init omap_iommu_init(void) const unsigned long flags = SLAB_HWCACHE_ALIGN; size_t align = 1 << 10; /* L2 pagetable alignement */ struct device_node *np; + int ret; np = of_find_matching_node(NULL, omap_iommu_of_match); if (!np) @@ -1312,11 +1313,25 @@ static int __init omap_iommu_init(void) return -ENOMEM; iopte_cachep = p; - bus_set_iommu(&platform_bus_type, &omap_iommu_ops); - omap_iommu_debugfs_init(); - return platform_driver_register(&omap_iommu_driver); + ret = platform_driver_register(&omap_iommu_driver); + if (ret) { + pr_err("%s: failed to register driver\n", __func__); + goto fail_driver; + } + + ret = bus_set_iommu(&platform_bus_type, &omap_iommu_ops); + if (ret) + goto fail_bus; + + return 0; + +fail_bus: + platform_driver_unregister(&omap_iommu_driver); +fail_driver: + kmem_cache_destroy(iopte_cachep); + return ret; } subsys_initcall(omap_iommu_init); /* must be ready before omap3isp is probed */