From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:47268 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752810AbcKIITE (ORCPT ); Wed, 9 Nov 2016 03:19:04 -0500 Subject: Patch "mmc: dw_mmc-pltfm: fix the potential NULL pointer dereference" has been added to the 4.8-stable tree To: jh80.chung@samsung.com, gregkh@linuxfoundation.org, shawn.lin@rock-chips.com, ulf.hansson@linaro.org Cc: , From: Date: Wed, 09 Nov 2016 09:18:46 +0100 Message-ID: <14786795261513@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled mmc: dw_mmc-pltfm: fix the potential NULL pointer dereference to the 4.8-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mmc-dw_mmc-pltfm-fix-the-potential-null-pointer-dereference.patch and it can be found in the queue-4.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 45c7a4908a307a023e237a64a3eadcafc4836493 Mon Sep 17 00:00:00 2001 From: Jaehoon Chung Date: Fri, 21 Oct 2016 19:57:57 +0900 Subject: mmc: dw_mmc-pltfm: fix the potential NULL pointer dereference From: Jaehoon Chung commit 45c7a4908a307a023e237a64a3eadcafc4836493 upstream. platform_get_resource can be returned the NULL pointer. Then regs->start should be referred to NULL Pointer. devm_ioremap_resource() checks whether res is NULL or not. Signed-off-by: Jaehoon Chung Reviewed-by: Shawn Lin Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman --- drivers/mmc/host/dw_mmc-pltfm.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- a/drivers/mmc/host/dw_mmc-pltfm.c +++ b/drivers/mmc/host/dw_mmc-pltfm.c @@ -46,12 +46,13 @@ int dw_mci_pltfm_register(struct platfor host->pdata = pdev->dev.platform_data; regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); - /* Get registers' physical base address */ - host->phy_regs = regs->start; host->regs = devm_ioremap_resource(&pdev->dev, regs); if (IS_ERR(host->regs)) return PTR_ERR(host->regs); + /* Get registers' physical base address */ + host->phy_regs = regs->start; + platform_set_drvdata(pdev, host); return dw_mci_probe(host); } Patches currently in stable-queue which might be from jh80.chung@samsung.com are queue-4.8/mmc-dw_mmc-pltfm-fix-the-potential-null-pointer-dereference.patch