host: xhci-plat: remove duplicate check on resource

Sanity check on resource happening with devm_ioremap_resource().

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Felipe Balbi <balbi@ti.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 3d78b0c..e68b4ec 100644 (file)
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -83,9 +83,6 @@ static int xhci_plat_probe(struct platform_device *pdev)
        if (irq < 0)
                return -ENODEV;
 
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!res)
-               return -ENODEV;
 
        if (of_device_is_compatible(pdev->dev.of_node,
                                    "marvell,armada-375-xhci") ||
@@ -109,15 +106,16 @@ static int xhci_plat_probe(struct platform_device *pdev)
        if (!hcd)
                return -ENOMEM;
 
-       hcd->rsrc_start = res->start;
-       hcd->rsrc_len = resource_size(res);
-
+       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        hcd->regs = devm_ioremap_resource(&pdev->dev, res);
        if (IS_ERR(hcd->regs)) {
                ret = PTR_ERR(hcd->regs);
                goto put_hcd;
        }
 
+       hcd->rsrc_start = res->start;
+       hcd->rsrc_len = resource_size(res);
+
        /*
         * Not all platforms have a clk so it is not an error if the
         * clock does not exists.