Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752600AbcKGLHz (ORCPT ); Mon, 7 Nov 2016 06:07:55 -0500 Received: from mx2.suse.de ([195.135.220.15]:49431 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750745AbcKGLHw (ORCPT ); Mon, 7 Nov 2016 06:07:52 -0500 Message-ID: <1478516525.2400.4.camel@suse.com> Subject: Re: [PATCH] usbnet: prevent device rpm suspend in usbnet_probe function From: Oliver Neukum To: Kai-Heng Feng Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, netdev@vger.kernel.org Date: Mon, 07 Nov 2016 12:02:05 +0100 In-Reply-To: <20161104095735.21071-1-kai.heng.feng@canonical.com> References: <20161104095735.21071-1-kai.heng.feng@canonical.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.11 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 451 Lines: 16 On Fri, 2016-11-04 at 17:57 +0800, Kai-Heng Feng wrote: > Sometimes cdc_mbim failed to probe if runtime pm is enabled: > [ 9.305626] cdc_mbim: probe of 2-2:1.12 failed with error -22 > > This can be solved by increase its pm usage counter. > > Signed-off-by: Kai-Heng Feng For the record: NAK. This fixes a symptom. If this patch helps something is broken in device core. We need to find that. Regards Oliver