From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751843AbaKDBru (ORCPT ); Mon, 3 Nov 2014 20:47:50 -0500 Received: from mail-pa0-f41.google.com ([209.85.220.41]:56811 "EHLO mail-pa0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750905AbaKDBrp (ORCPT ); Mon, 3 Nov 2014 20:47:45 -0500 From: varkabhadram@gmail.com To: gregkh@linuxfoundation.org, linux-usb@vger.kernel.org Cc: balbi@ti.com, stern@rowland.harvard.edu, sergei.shtylyov@cogentembedded.com, linux-kernel@vger.kernel.org, Varka Bhadram , Varka Bhadram Subject: [PATCH usb v4 1/2] host: uhci-platform: fix NULL pointer dereference on resource Date: Tue, 4 Nov 2014 07:17:10 +0530 Message-Id: <1415065631-6010-2-git-send-email-varkabhadram@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1415065631-6010-1-git-send-email-varkabhadram@gmail.com> References: <1415065631-6010-1-git-send-email-varkabhadram@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Varka Bhadram Fix in accessing NULL if resource didn't get. Signed-off-by: Varka Bhadram Acked-by: Alan Stern --- drivers/usb/host/uhci-platform.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c index b987f1d..cf8f460 100644 --- a/drivers/usb/host/uhci-platform.c +++ b/drivers/usb/host/uhci-platform.c @@ -86,14 +86,14 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev) return -ENOMEM; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - hcd->rsrc_start = res->start; - hcd->rsrc_len = resource_size(res); - hcd->regs = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(hcd->regs)) { ret = PTR_ERR(hcd->regs); goto err_rmr; } + hcd->rsrc_start = res->start; + hcd->rsrc_len = resource_size(res); + uhci = hcd_to_uhci(hcd); uhci->regs = hcd->regs; -- 1.7.9.5