From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753274AbaIDKOH (ORCPT ); Thu, 4 Sep 2014 06:14:07 -0400 Received: from 8bytes.org ([81.169.241.247]:57312 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752060AbaIDKOE (ORCPT ); Thu, 4 Sep 2014 06:14:04 -0400 Date: Thu, 4 Sep 2014 12:14:02 +0200 From: Joerg Roedel To: Varun Sethi Cc: iommu@lists.linux-foundation.org, alex.williamson@redhat.com, Emilian.Medve@freescale.com, linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] iommu/fsl: Fix warning resulting from adding PCI device twice Message-ID: <20140904101402.GM28786@8bytes.org> References: <1409810622-742-1-git-send-email-Varun.Sethi@freescale.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409810622-742-1-git-send-email-Varun.Sethi@freescale.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 04, 2014 at 11:33:42AM +0530, Varun Sethi wrote: > + if (!iommu_group_get(dev)) > + ret = iommu_group_add_device(group, dev); > > iommu_group_put(group); > return ret; Doesn't this additional call to iommu_group_get take a reference to the iommu_group that needs to be released? Joerg