From 9a0c19824dd7b754c5178fd1eb26c13eaca78146 Mon Sep 17 00:00:00 2001
From: Dominik Brodowski <linux@brodo.de>
Date: Sat, 22 Mar 2003 04:34:41 -0800
Subject: [PATCH] [PATCH] pcmcia: add bus_type pcmcia_bus_type

Register a bus_type pcmcia_bus_type. This means the initialization of
the ds module needs to be done in two levels: one quite early
(subsys_initcall) so that drivers may use the bus_type; the other one
must stay that late (late_initcall). As only one initcall can be
specified within one module, some tweaking is needed.
---
 drivers/pcmcia/ds.c | 35 ++++++++++++++++++++++++++++++-----
 include/pcmcia/ds.h |  3 +++
 2 files changed, 33 insertions(+), 5 deletions(-)

diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index bee8f552a6b22..df3f8286f91e3 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -881,7 +881,18 @@ EXPORT_SYMBOL(unregister_pccard_driver);
 
 /*====================================================================*/
 
-int __init init_pcmcia_ds(void)
+struct bus_type pcmcia_bus_type = {
+	.name = "pcmcia",
+};
+EXPORT_SYMBOL(pcmcia_bus_type);
+
+static int __init init_pcmcia_bus(void)
+{
+	bus_register(&pcmcia_bus_type);
+	return 0;
+}
+
+static int __init init_pcmcia_ds(void)
 {
     client_reg_t client_reg;
     servinfo_t serv;
@@ -967,11 +978,8 @@ int __init init_pcmcia_ds(void)
     return 0;
 }
 
-late_initcall(init_pcmcia_ds);
 
-#ifdef MODULE
-
-void __exit cleanup_module(void)
+static void __exit exit_pcmcia_ds(void)
 {
     int i;
 #ifdef CONFIG_PROC_FS
@@ -984,6 +992,23 @@ void __exit cleanup_module(void)
 	pcmcia_deregister_client(socket_table[i].handle);
     sockets = 0;
     kfree(socket_table);
+    bus_unregister(&pcmcia_bus_type);
 }
 
+#ifdef MODULE
+
+/* init_pcmcia_bus must be done early, init_pcmcia_ds late. If we load this 
+ * as a module, we can only specify one initcall, though... 
+ */
+static int __init init_pcmcia_module(void) {
+	init_pcmcia_bus();
+	return init_pcmcia_ds();
+}
+module_init(init_pcmcia_module);
+
+#else /* !MODULE */
+subsys_initcall(init_pcmcia_bus);
+late_initcall(init_pcmcia_ds);
 #endif
+
+module_exit(exit_pcmcia_ds);
diff --git a/include/pcmcia/ds.h b/include/pcmcia/ds.h
index 65a5d07a38725..1a4a6dfafecff 100644
--- a/include/pcmcia/ds.h
+++ b/include/pcmcia/ds.h
@@ -32,6 +32,7 @@
 
 #include <pcmcia/driver_ops.h>
 #include <pcmcia/bulkmem.h>
+#include <linux/device.h>
 
 typedef struct tuple_parse_t {
     tuple_t		tuple;
@@ -143,6 +144,8 @@ int unregister_pccard_driver(dev_info_t *dev_info);
 #define register_pcmcia_driver register_pccard_driver
 #define unregister_pcmcia_driver unregister_pccard_driver
 
+extern struct bus_type pcmcia_bus_type;
+
 #endif /* __KERNEL__ */
 
 #endif /* _LINUX_DS_H */
-- 
2.53.0