If platform_get_irq() returns IRQ0 (considered invalid according to Linus)
the driver blithely passes it to usb_add_hcd() that treats IRQ0 as no IRQ
at all. Deny IRQ0 right away, returning -EINVAL from the probe() method...
Fixes: fa3364b5a2d7 ("USB: OHCI: Add a generic platform device driver")
Signed-off-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
---
Changes in version 2:
- added Alan's ACK.
drivers/usb/host/ohci-platform.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index 4a8456f12a73..ec1d38d5d140 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -113,6 +113,8 @@ static int ohci_platform_probe(struct platform_device *dev)
irq = platform_get_irq(dev, 0);
if (irq < 0)
return irq;
+ if (!irq)
+ return -EINVAL;
hcd = usb_create_hcd(&ohci_platform_hc_driver, &dev->dev,
dev_name(&dev->dev));
--
2.26.3
