From patchwork Tue Dec 17 02:50:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Bao D. Nguyen" X-Patchwork-Id: 11296431 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7EB72109A for ; Tue, 17 Dec 2019 02:53:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 52A9824672 for ; Tue, 17 Dec 2019 02:53:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="hJRykcJ3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727215AbfLQCwy (ORCPT ); Mon, 16 Dec 2019 21:52:54 -0500 Received: from mail26.static.mailgun.info ([104.130.122.26]:61772 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727106AbfLQCwt (ORCPT ); Mon, 16 Dec 2019 21:52:49 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1576551169; h=References: In-Reply-To: References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=5VMsqS8lIHVcSH7kLp2T46tPeWOdiEfYDpNCPsaN/uQ=; b=hJRykcJ3TKa7pljl+eU6X/X57WD+EsNgMDfyE3iDZceb7sg6yIRydMHyE8i8jlCbYDeW8bq6 BK7wjkGCbWYh1iEd+WmhRtWmLtOTOVdMyjSqmwNuMNOmB5P2B+CjrcC5DOc88/Fjx5CkOK7T 4ff4TXkOmo9s8CY6gx9HvRnv2oc= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyJiYTcxMiIsICJsaW51eC1tbWNAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5df842ff.7f896be25030-smtp-out-n03; Tue, 17 Dec 2019 02:52:47 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id B71D2C447A0; Tue, 17 Dec 2019 02:52:47 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from pacamara-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: nguyenb) by smtp.codeaurora.org (Postfix) with ESMTPSA id 773F6C4479C; Tue, 17 Dec 2019 02:52:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 773F6C4479C Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=nguyenb@codeaurora.org From: "Bao D. Nguyen" To: ulf.hansson@linaro.org, robh+dt@kernel.org Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, asutoshd@codeaurora.org, cang@codeaurora.org, "Bao D. Nguyen" , "Bao D. Nguyen" Subject: [ 9/9] mmc: sd: Fix trivial SD card issues Date: Mon, 16 Dec 2019 18:50:42 -0800 Message-Id: <25f3b41fb4950cad5cf075b245d0ac4010cd1aac.1576540908.git.nguyenb@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: References: In-Reply-To: References: Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org From: "Bao D. Nguyen" Fix various trivial SD card issues. Signed-off-by: Bao D. Nguyen --- drivers/mmc/core/block.c | 4 ++-- drivers/mmc/core/bus.c | 13 +++++++++++++ drivers/mmc/core/core.c | 13 ++++++++----- drivers/mmc/core/sd.c | 9 ++++++--- 4 files changed, 29 insertions(+), 10 deletions(-) diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index 95b41c0..200882d 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -653,13 +653,13 @@ static int mmc_blk_ioctl_cmd(struct mmc_blk_data *md, struct request *req; idata = mmc_blk_ioctl_copy_from_user(ic_ptr); - if (IS_ERR(idata)) + if (IS_ERR_OR_NULL(idata)) return PTR_ERR(idata); /* This will be NULL on non-RPMB ioctl():s */ idata->rpmb = rpmb; card = md->queue.card; - if (IS_ERR(card)) { + if (IS_ERR_OR_NULL(card)) { err = PTR_ERR(card); goto cmd_done; } diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 74de3f2..fb17d21 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -131,6 +131,16 @@ static void mmc_bus_shutdown(struct device *dev) struct mmc_host *host = card->host; int ret; + if (!drv) { + pr_debug("%s: %s: drv is NULL\n", dev_name(dev), __func__); + return; + } + + if (!card) { + pr_debug("%s: %s: card is NULL\n", dev_name(dev), __func__); + return; + } + if (dev->driver && drv->shutdown) drv->shutdown(card); @@ -247,12 +257,15 @@ void mmc_unregister_driver(struct mmc_driver *drv) static void mmc_release_card(struct device *dev) { struct mmc_card *card = mmc_dev_to_card(dev); + struct mmc_host *host = card->host; sdio_free_common_cis(card); kfree(card->info); kfree(card); + if (host) + host->card = NULL; } /* diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 38b0cec..13d496e 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -399,7 +399,7 @@ void mmc_wait_for_req_done(struct mmc_host *host, struct mmc_request *mrq) struct mmc_command *cmd; while (1) { - wait_for_completion(&mrq->completion); + wait_for_completion_io(&mrq->completion); cmd = mrq->cmd; @@ -666,6 +666,10 @@ void mmc_set_data_timeout(struct mmc_data *data, const struct mmc_card *card) { unsigned int mult; + if (!card) { + WARN_ON(1); + return; + } /* * SDIO cards only define an upper 1 s limit on access. */ @@ -2341,17 +2345,16 @@ void mmc_rescan(struct work_struct *work) void mmc_start_host(struct mmc_host *host) { + mmc_claim_host(host); host->f_init = max(freqs[0], host->f_min); host->rescan_disable = 0; host->ios.power_mode = MMC_POWER_UNDEFINED; - if (!(host->caps2 & MMC_CAP2_NO_PRESCAN_POWERUP)) { - mmc_claim_host(host); + if (!(host->caps2 & MMC_CAP2_NO_PRESCAN_POWERUP)) mmc_power_up(host, host->ocr_avail); - mmc_release_host(host); - } mmc_gpiod_request_cd_irq(host); + mmc_release_host(host); _mmc_detect_change(host, 0, false); } diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index 5938caf..e163f0e 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -989,6 +989,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr, err = mmc_send_relative_addr(host, &card->rca); if (err) goto free_card; + host->card = card; } if (!oldcard) { @@ -1090,13 +1091,13 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr, goto free_card; } done: - host->card = card; return 0; free_card: - if (!oldcard) + if (!oldcard) { + host->card = NULL; mmc_remove_card(card); - + } return err; } @@ -1106,7 +1107,9 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr, static void mmc_sd_remove(struct mmc_host *host) { mmc_remove_card(host->card); + mmc_claim_host(host); host->card = NULL; + mmc_release_host(host); } /*