usb: musb: core: fix IRQ check
musb_probe() only regards 0 as a wrong IRQ number, despite platform_get_irq()
that it calls returns -ENXIO in that case. It leads to musb_init_controller()
calling request_irq() with a negative IRQ number, and when it naturally
fails, the following is printed to the console:
request_irq -6 failed!
musb_init_controller failed with status -19
Fix musb_probe() to filter out the error values as well as 0.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 12b515b..54a8bd1 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2185,7 +2185,7 @@
void __iomem *base;
iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!iomem || irq == 0)
+ if (!iomem || irq <= 0)
return -ENODEV;
base = ioremap(iomem->start, resource_size(iomem));