From patchwork Fri Mar 25 15:17:59 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sakari Ailus X-Patchwork-Id: 662711 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p2PFIVoc006153 for ; Fri, 25 Mar 2011 15:19:02 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753609Ab1CYPS0 (ORCPT ); Fri, 25 Mar 2011 11:18:26 -0400 Received: from smtp.nokia.com ([147.243.1.48]:63456 "EHLO mgw-sa02.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751360Ab1CYPSU (ORCPT ); Fri, 25 Mar 2011 11:18:20 -0400 Received: from nokia.com (localhost [127.0.0.1]) by mgw-sa02.nokia.com (Switch-3.4.3/Switch-3.4.3) with ESMTP id p2PFIGVO030046; Fri, 25 Mar 2011 17:18:17 +0200 Received: from maxwell.research.nokia.com ([maxwell.research.nokia.com [172.21.50.162]]) by mgw-sa02.nokia.com with ESMTP id p2PFI2GS029954 ; Fri, 25 Mar 2011 17:18:02 +0200 Received: from kaali.localdomain (kaali.localdomain [192.168.239.7]) by maxwell.research.nokia.com (Postfix) with ESMTPS id 36FDB37FCDA; Fri, 25 Mar 2011 17:18:02 +0200 (EET) Received: from sailus by kaali.localdomain with local (Exim 4.72) (envelope-from ) id 1Q38m2-00026O-3a; Fri, 25 Mar 2011 17:18:02 +0200 From: Sakari Ailus To: linux-omap@vger.kernel.org Cc: laurent.pinchart@ideasonboard.com, david.cohen@nokia.com, hiroshi.doyu@nokia.com Subject: [PATCH 1/4] omap iommu: Check existence of arch_iommu Date: Fri, 25 Mar 2011 17:17:59 +0200 Message-Id: <1301066282-8040-1-git-send-email-sakari.ailus@maxwell.research.nokia.com> X-Mailer: git-send-email 1.7.2.3 In-Reply-To: <4D8CB217.1050909@maxwell.research.nokia.com> References: <4D8CB217.1050909@maxwell.research.nokia.com> X-Nokia-AV: Clean Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Fri, 25 Mar 2011 15:19:02 +0000 (UTC) diff --git a/arch/arm/plat-omap/iommu.c b/arch/arm/plat-omap/iommu.c index b1107c0..f0fea0b 100644 --- a/arch/arm/plat-omap/iommu.c +++ b/arch/arm/plat-omap/iommu.c @@ -104,6 +104,9 @@ static int iommu_enable(struct iommu *obj) if (!obj) return -EINVAL; + if (!arch_iommu) + return -ENOENT; + clk_enable(obj->clk); err = arch_iommu->enable(obj);