[PATCH 14/22] usb: host: ohci-pxa27x: deny IRQ0

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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: 84bab7393b0d ("[ARM] ohci-pxa27x: use platform_get_{irq,resource} for the resource")
Signed-off-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
---
 drivers/usb/host/ohci-pxa27x.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index 54aa5c77e549..336437277fd0 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -443,6 +443,8 @@ static int ohci_hcd_pxa27x_probe(struct platform_device *pdev)
 		pr_err("no resource of IORESOURCE_IRQ");
 		return irq;
 	}
+	if (!irq)
+		return -EINVAL;
 
 	usb_clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(usb_clk))
-- 
2.26.3




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