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 X-Spam-Level: X-Spam-Status: No, score=-10.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 527C3C43387 for ; Fri, 11 Jan 2019 15:13:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1AB162177B for ; Fri, 11 Jan 2019 15:13:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1547219638; bh=uSaZtYgjRdXaBv79pL3TfpM2hA9767/lAmsqJnfEQx4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Zy8o7V5F8SJX2OeyFBCSYPkWWPNAXzDI/lQCFud0PoKtXLUvzBflvSaqpOJnzHlw+ I5onlXUk8/rzmDf0YYiRGWncOPzzAktJ1IdSVdvkbyXMB04y5GK6qHVR4idsMv8TS3 Go74+FUVPu+ivv+fm0UCCX+5gVeqV37qRB4xiEd8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733085AbfAKOOh (ORCPT ); Fri, 11 Jan 2019 09:14:37 -0500 Received: from mail.kernel.org ([198.145.29.99]:58260 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733073AbfAKOOd (ORCPT ); Fri, 11 Jan 2019 09:14:33 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C5F03214D8; Fri, 11 Jan 2019 14:14:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1547216073; bh=uSaZtYgjRdXaBv79pL3TfpM2hA9767/lAmsqJnfEQx4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ah8vFsUo2coYX88elOGYjRhZr395UWJTQkh3SE6bAsguk9ePEhCxm15wgBBbLoNvN LaqQQaylxFrRh6MJiUFRaGpBxgiigjHmfK5b6xmdi6Jiof77JP+qFsY/PKS+exu+1I u0lWeVqMViM219DF4SrZkFQpy21xO8POvQQ+vZvg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ulf Hansson Subject: [PATCH 3.18 03/47] mmc: core: Reset HPI enabled state during re-init and in case of errors Date: Fri, 11 Jan 2019 15:07:48 +0100 Message-Id: <20190111130956.627378859@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190111130956.170952125@linuxfoundation.org> References: <20190111130956.170952125@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 3.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ulf Hansson commit a0741ba40a009f97c019ae7541dc61c1fdf41efb upstream. During a re-initialization of the eMMC card, we may fail to re-enable HPI. In these cases, that isn't properly reflected in the card->ext_csd.hpi_en bit, as it keeps being set. This may cause following attempts to use HPI, even if's not enabled. Let's fix this! Fixes: eb0d8f135b67 ("mmc: core: support HPI send command") Cc: Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman --- drivers/mmc/core/mmc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1485,9 +1485,11 @@ static int mmc_init_card(struct mmc_host if (err) { pr_warn("%s: Enabling HPI failed\n", mmc_hostname(card->host)); + card->ext_csd.hpi_en = 0; err = 0; - } else + } else { card->ext_csd.hpi_en = 1; + } } /*