usb: host: ohci-pxa27x: propagate the irq error code

In several drivers in the pxa architecture, it was found that the
platform_get_irq() was not propagated. This breaks the the device-tree
probe deferral path, if -EPROBE_DEFER is returned. Unfortunately, the
error return in this case is transformed into -ENXIO, breaking the
deferral mechanism.

Even if in this specific case the driver was not broken, because the
interrupt controller is always probed before drivers, propagate the
proper return code.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index e8c006e..a667cf2 100644 (file)
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -435,7 +435,7 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device
        irq = platform_get_irq(pdev, 0);
        if (irq < 0) {
                pr_err("no resource of IORESOURCE_IRQ");
-               return -ENXIO;
+               return irq;
        }
 
        usb_clk = devm_clk_get(&pdev->dev, NULL);