From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933121AbbAIPmF (ORCPT ); Fri, 9 Jan 2015 10:42:05 -0500 Received: from smtp-out-098.synserver.de ([212.40.185.98]:1066 "EHLO smtp-out-245.synserver.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933095AbbAIPmB (ORCPT ); Fri, 9 Jan 2015 10:42:01 -0500 X-SynServer-TrustedSrc: 1 X-SynServer-AuthUser: lars@metafoo.de X-SynServer-PPID: 7736 Message-ID: <54AFF6C4.9020306@metafoo.de> Date: Fri, 09 Jan 2015 16:41:56 +0100 From: Lars-Peter Clausen User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.3.0 MIME-Version: 1.0 To: "Ivan T. Ivanov" , Jonathan Cameron , Hartmut Knaack , Peter Meerwald CC: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] iio: Simplify IIO provider access locking mechanism References: <1420817893-5858-1-git-send-email-iivanov@mm-sol.com> In-Reply-To: <1420817893-5858-1-git-send-email-iivanov@mm-sol.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/09/2015 04:38 PM, Ivan T. Ivanov wrote: > Instead of checking whether provider module is still > loaded on every access to device just lock module to > memory when client get reference to provider device. > This has nothing to do with the module, it's about the device. In the Linux device driver model as device can be unbound at any time and the IIO framework needs to handle this. - Lars