From 0d484d47933d7c0287a0379fdc3079b6f5cfba69 Mon Sep 17 00:00:00 2001
From: Doug Rabson <dfr@FreeBSD.org>
Date: Sat, 22 Apr 2000 15:03:08 +0000
Subject: [PATCH] Make sure the driver's ops table has been initialised before
 calling static methods.

---
 sys/kern/subr_bus.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sys/kern/subr_bus.c b/sys/kern/subr_bus.c
index 01b967654d32..27edde92c008 100644
--- a/sys/kern/subr_bus.c
+++ b/sys/kern/subr_bus.c
@@ -1842,6 +1842,11 @@ bus_generic_driver_added(device_t dev, driver_t *driver)
 {
     device_t child;
 
+    /*
+     * Make sure the class has a valid ops table.
+     */
+    kobj_class_compile((kobj_class_t) driver);
+
     DEVICE_IDENTIFY(driver, dev);
     for (child = TAILQ_FIRST(&dev->children);
 	 child; child = TAILQ_NEXT(child, link))