===================================================================
RCS file: /cvs/funnyos/kern/kern_irq.c,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- funnyos/kern/kern_irq.c	2007/11/04 23:18:46	1.2
+++ funnyos/kern/kern_irq.c	2007/12/16 23:24:59	1.3
@@ -1,5 +1,5 @@
 /*
- * $Id: kern_irq.c,v 1.2 2007/11/04 23:18:46 init Exp $
+ * $Id: kern_irq.c,v 1.3 2007/12/16 23:24:59 nbrk Exp $
  */
 #include <sys/types.h>
 #include <sys/device.h>
@@ -21,7 +21,7 @@
 	/*
 	 * Add interrupt vector to irqtable.
 	 */
-	struct intr_vector *ivp;
+	struct intr_vector *ivp, *previvp;
 
 	ivp = irqtable;
 
@@ -43,14 +43,15 @@
 	}
 	else {
 		/* walk through the list */
-		do {
-			/* check if this interrupt line already binded */
+		while(ivp->iv_next != NULL) {
 			if (ivp->iv_intrno == intrno)
 				panic("failed to establish interrupt (intrno %d already set by other device)\n", intrno);
 
-			/* become next element */
 			ivp = ivp->iv_next;
-		} while(ivp != NULL);
+		}
+		/* found last entry */
+		previvp = ivp;
+		ivp = ivp->iv_next;
 
 		/* allocate space */
 		ivp = kmalloc(sizeof(struct intr_vector));
@@ -62,6 +63,9 @@
 		ivp->iv_device = device;
 		ivp->iv_intrfunc = intrfunc;
 		ivp->iv_next = NULL;
+
+		/* link previous entry */
+		previvp->iv_next = ivp;
 	}
 
 }