Sanity guard- return ENODEV if we don't have a good IRQ resource.

2001-07-11 02:24:28 +00:00 · 2001-07-11 02:24:28 +00:00 · cd7c95e0bd
commit cd7c95e0bd
parent 71cfb39eb9
1 changed files with 3 additions and 0 deletions
--- a/sys/alpha/isa/isa.c
+++ b/sys/alpha/isa/isa.c
@ -338,6 +338,9 @@ isa_setup_intr(device_t dev, device_t child,
 		return platform.isa_setup_intr(dev, child, irq, flags, 
 			intr, arg, cookiep);	

+	if (irq == NULL)
+		return ENODEV;
+
 	error = rman_activate_resource(irq);
 	if (error)
 		return error;