linux-kernel - [PATCH 1/3] mmc: rtsx: fix card poweroff bug

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <a60360da28682ac2029f6fbe5165356def007db0.1389230226.git.micky_ching@realsil.com.cn>
Date:	Thu, 9 Jan 2014 09:40:46 +0800
From:	<micky_ching@...lsil.com.cn>
To:	<cjb@...top.org>, <sameo@...ux.intel.com>
CC:	<devel@...uxdriverproject.org>, <linux-kernel@...r.kernel.org>,
	<linux-mmc@...r.kernel.org>, <gregkh@...uxfoundation.org>,
	<rogerable@...ltek.com>, <wei_wang@...lsil.com.cn>,
	Micky Ching <micky_ching@...lsil.com.cn>
Subject: [PATCH 1/3] mmc: rtsx: fix card poweroff bug

From: Micky Ching <micky_ching@...lsil.com.cn>

If the host driver removed while card in the slot, the host will not
power off card power correctly. This bug is produced because host
eject flag set before the last mmc_set_ios callback, we should set the
eject flag after power off.

Signed-off-by: Micky Ching <micky_ching@...lsil.com.cn>
---
 drivers/mmc/host/rtsx_pci_sdmmc.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index 375a880e..c9a7328 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -1328,7 +1328,6 @@ static int rtsx_pci_sdmmc_drv_remove(struct platform_device *pdev)
 	pcr->slots[RTSX_SD_CARD].p_dev = NULL;
 	pcr->slots[RTSX_SD_CARD].card_event = NULL;
 	mmc = host->mmc;
-	host->eject = true;
 
 	mutex_lock(&host->host_mutex);
 	if (host->mrq) {
@@ -1346,6 +1345,8 @@ static int rtsx_pci_sdmmc_drv_remove(struct platform_device *pdev)
 	mutex_unlock(&host->host_mutex);
 
 	mmc_remove_host(mmc);
+	host->eject = true;
+
 	mmc_free_host(mmc);
 
 	dev_dbg(&(pdev->dev),
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/