Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753044Ab3EUN61 (ORCPT ); Tue, 21 May 2013 09:58:27 -0400 Received: from mga03.intel.com ([143.182.124.21]:60700 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750785Ab3EUN60 (ORCPT ); Tue, 21 May 2013 09:58:26 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.87,714,1363158000"; d="scan'208";a="244628127" Date: Tue, 21 May 2013 15:58:17 +0200 From: Samuel Ortiz To: "Winkler, Tomas" Cc: linux-kernel Subject: [PATCH] [3.10] mei: bus: Reset event_cb when disabling a device Message-ID: <20130521135817.GE4589@zurbaran> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline 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 Content-Length: 963 Lines: 33 After cancelling all reads from the disable hook, we need to reset the event_cb pointer as well or else we won't be able to set a new one up when re-enabling the device. Signed-off-by: Samuel Ortiz --- drivers/misc/mei/bus.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index 1e935ea..9ecd49a 100644 --- a/drivers/misc/mei/bus.c +++ b/drivers/misc/mei/bus.c @@ -496,6 +496,8 @@ int mei_cl_disable_device(struct mei_cl_device *device) } } + device->event_cb = NULL; + mutex_unlock(&dev->device_lock); if (!device->ops || !device->ops->disable) -- 1.7.10.4 -- Intel Open Source Technology Centre http://oss.intel.com/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/