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: efe7daf2231a ("USB: OHCI: DA8xx/OMAP-L1x glue layer")
Signed-off-by: Sergey Shtylyov <redacted>
---
 drivers/usb/host/ohci-da8xx.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c
index 1371b0c249ec..6d08ab2bf163 100644
--- a/drivers/usb/host/ohci-da8xx.c
+++ b/drivers/usb/host/ohci-da8xx.c

@@ -449,6 +449,10 @@ static int ohci_da8xx_probe(struct platform_device *pdev)
 		error = -ENODEV;
 		goto err;
 	}
+	if (!hcd_irq) {
+		error = -EINVAL;
+		goto err;
+	}
 
 	error = usb_add_hcd(hcd, hcd_irq, 0);
 	if (error)

-- 
2.26.3