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 cf12676..9b6e8d0 100644 (file)
--- 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;