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: c8c38de9d800 ("USB host: Adding USB ehci & ohci support for spear platform")
Signed-off-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
---
drivers/usb/host/ehci-spear.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c
index 3694e450a11a..f4a5896900dc 100644
--- a/drivers/usb/host/ehci-spear.c
+++ b/drivers/usb/host/ehci-spear.c
@@ -70,6 +70,10 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
retval = irq;
goto fail;
}
+ if (!irq) {
+ retval = -EINVAL;
+ goto fail;
+ }
/*
* Right now device-tree probed devices don't get dma_mask set.
--
2.26.3
