The driver overrides the error codes (and also IRQ0) returned by
platform_get_irq() to -ENODEV, so if it returns -EPROBE_DEFER, the driver
will fail the probe permanently instead of the deferred probing. Switch to
propagating the error codes upstream -- that means we have to explicitly
filter out IRQ0 as bad since usb_add_hcd() doesn't quite like it... :-)
Fixes: 501c9c0802d9 ("USB: at91: Add USB EHCI driver for at91sam9g45 series")
Signed-off-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
---
drivers/usb/host/ehci-atmel.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index 05d41fd65f25..3f7c8ccc6d7f 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -104,8 +104,12 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev)
pr_debug("Initializing Atmel-SoC USB Host Controller\n");
irq = platform_get_irq(pdev, 0);
- if (irq <= 0) {
- retval = -ENODEV;
+ if (irq < 0) {
+ retval = irq;
+ goto fail_create_hcd;
+ }
+ if (!irq) {
+ retval = -EINVAL;
goto fail_create_hcd;
}
--
2.26.3
