From patchwork Wed Nov 29 13:41:11 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adrian Hunter X-Patchwork-Id: 10082217 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 800AA6020B for ; Wed, 29 Nov 2017 13:45:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6CF622983B for ; Wed, 29 Nov 2017 13:45:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 61B8C29843; Wed, 29 Nov 2017 13:45:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DF7D02983B for ; Wed, 29 Nov 2017 13:45:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752538AbdK2NpX (ORCPT ); Wed, 29 Nov 2017 08:45:23 -0500 Received: from mga02.intel.com ([134.134.136.20]:39581 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932321AbdK2Nmy (ORCPT ); Wed, 29 Nov 2017 08:42:54 -0500 Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 29 Nov 2017 05:42:53 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.44,473,1505804400"; d="scan'208";a="1249888295" Received: from ahunter-desktop.fi.intel.com ([10.237.72.168]) by fmsmga002.fm.intel.com with ESMTP; 29 Nov 2017 05:42:46 -0800 From: Adrian Hunter To: Ulf Hansson Cc: linux-mmc , linux-block , linux-kernel , Bough Chen , Alex Lemberg , Mateusz Nowak , Yuliy Izrailov , Jaehoon Chung , Dong Aisheng , Das Asutosh , Zhangfei Gao , Sahitya Tummala , Harjani Ritesh , Venu Byravarasu , Linus Walleij , Shawn Lin , Bartlomiej Zolnierkiewicz , Christoph Hellwig Subject: [PATCH V15 14/22] mmc: block: Check the timeout correctly in card_busy_detect() Date: Wed, 29 Nov 2017 15:41:11 +0200 Message-Id: <1511962879-24262-15-git-send-email-adrian.hunter@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1511962879-24262-1-git-send-email-adrian.hunter@intel.com> References: <1511962879-24262-1-git-send-email-adrian.hunter@intel.com> Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Pedantically, ensure the status is checked for the last time after the full timeout has passed. Signed-off-by: Adrian Hunter --- drivers/mmc/core/block.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index c446d17b48c4..f7c387c27ac0 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -931,6 +931,8 @@ static int card_busy_detect(struct mmc_card *card, unsigned int timeout_ms, u32 status; do { + bool done = time_after(jiffies, timeout); + err = __mmc_send_status(card, &status, 5); if (err) { pr_err("%s: error %d requesting status\n", @@ -951,7 +953,7 @@ static int card_busy_detect(struct mmc_card *card, unsigned int timeout_ms, * Timeout if the device never becomes ready for data and never * leaves the program state. */ - if (time_after(jiffies, timeout)) { + if (done) { pr_err("%s: Card stuck in programming state! %s %s\n", mmc_hostname(card->host), req->rq_disk->disk_name, __func__);