From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 42C84C4332F for ; Thu, 17 Nov 2022 12:50:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234116AbiKQMuQ (ORCPT ); Thu, 17 Nov 2022 07:50:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46690 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232943AbiKQMuP (ORCPT ); Thu, 17 Nov 2022 07:50:15 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D24291085; Thu, 17 Nov 2022 04:50:14 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 2E4FFB81FFB; Thu, 17 Nov 2022 12:50:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 22B12C433D6; Thu, 17 Nov 2022 12:50:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1668689411; bh=fzEMedudwRzJD5f78xLSPO+0H2Qs8vY/kU/Ygz5mtbE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=rewA3NjeA9SJbZMw7H0bWxK5F0Xq+d5eIR0upeHEYDBnSKGJNCjbjW4oXBF1vPziF 51T7/T1Nex87/Nx9zTopQoo7QS6m+idpbc74sjKmQa4fmS86eOXEfOwWntPWsQ1fPi JIzKF8KjzuEEyWu31l1b62Mn/Q5bixV9yu5Xv79s= Date: Thu, 17 Nov 2022 13:50:01 +0100 From: Greg KH To: Lee Jones Cc: balbi@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: Re: [PATCH 1/1] usb: gadget: f_hid: Conduct proper refcounting on shared f_hidg pointer Message-ID: References: <20221117120813.1257583-1-lee@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221117120813.1257583-1-lee@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On Thu, Nov 17, 2022 at 12:08:13PM +0000, Lee Jones wrote: > A reference to struct f_hidg is shared with this driver's associated > character device handling component without provision for life-time > handling. In some circumstances, this can lead to unwanted > behaviour depending on the order in which things are torn down. > > Utilise, the reference counting functionality already provided by the > implanted character device structure to ensure the struct f_hidg's > memory is only freed once the character device handling has finished > with it. > > Signed-off-by: Lee Jones > --- > drivers/usb/gadget/function/f_hid.c | 47 +++++++++++++++++++++++------ > 1 file changed, 37 insertions(+), 10 deletions(-) Hi, This is the friendly patch-bot of Greg Kroah-Hartman. You have sent him a patch that has triggered this response. He used to manually respond to these common problems, but in order to save his sanity (he kept writing the same thing over and over, yet to different people), I was created. Hopefully you will not take offence and will fix the problem in your patch and resubmit it so that it can be accepted into the Linux kernel tree. You are receiving this message because of the following common error(s) as indicated below: - This looks like a new version of a previously submitted patch, but you did not list below the --- line any changes from the previous version. Please read the section entitled "The canonical patch format" in the kernel file, Documentation/SubmittingPatches for what needs to be done here to properly describe this. If you wish to discuss this problem further, or you have questions about how to resolve this issue, please feel free to respond to this email and Greg will reply once he has dug out from the pending patches received from other developers. thanks, greg k-h's patch email bot