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: b33f37064b74 ("USB: host: ehci: introduce omap ehci-hcd 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/ehci-omap.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index 7f4a03e8647a..79cec242c025 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -117,6 +117,8 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
+ if (!irq)
+ return -ENIVAL;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
regs = devm_ioremap_resource(dev, res);
--
2.26.3
