diff --git a/drivers/pci/htirq.c b/drivers/pci/htirq.c
index bf7d6ce..6808d83 100644
--- a/drivers/pci/htirq.c
+++ b/drivers/pci/htirq.c
@@ -158,6 +158,7 @@
 
 /**
  * ht_destroy_irq - destroy an irq created with ht_create_irq
+ * @irq: irq to be destroyed
  *
  * This reverses ht_create_irq removing the specified irq from
  * existence.  The irq should be free before this happens.