From: Varka Bhadram <varkabhadram@gmail.com>
Date: Tue, 4 Nov 2014 01:47:11 +0000 (+0530)
Subject: host: ehci-sead3: fix NULL pointer dereference on resource
X-Git-Tag: v3.19-rc1~80^2~81
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=239ab7a41ada94a0248028c380b66be7704db054;p=thirdparty%2Fkernel%2Fstable.git

host: ehci-sead3: fix NULL pointer dereference on resource

Fix on accessing NULL pointer dereference on get resource failed.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/host/ehci-sead3.c b/drivers/usb/host/ehci-sead3.c
index cf12676738683..9b6e8d0eac43e 100644
--- a/drivers/usb/host/ehci-sead3.c
+++ b/drivers/usb/host/ehci-sead3.c
@@ -110,14 +110,13 @@ static int ehci_hcd_sead3_drv_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 err1;
 	}
+	hcd->rsrc_start = res->start;
+	hcd->rsrc_len = resource_size(res);
 
 	/* Root hub has integrated TT. */
 	hcd->has_tt = 1;