[PATCH 2.5] pcmcia (2/5): add bus_type pcmcia_bus_type

From: Dominik Brodowski (linux@brodo.de)
Date: Sat Mar 22 2003 - 11:00:32 EST


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.

          Dominik

diff -ruN linux-original/drivers/pcmcia/ds.c linux/drivers/pcmcia/ds.c
--- linux-original/drivers/pcmcia/ds.c 2003-03-22 16:12:08.000000000 +0100
+++ linux/drivers/pcmcia/ds.c 2003-03-22 16:11:50.000000000 +0100
@@ -881,7 +881,18 @@
 
 /*====================================================================*/
 
-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 @@
     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 @@
         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 -ruN linux-original/include/pcmcia/ds.h linux/include/pcmcia/ds.h
--- linux-original/include/pcmcia/ds.h 2003-03-22 16:12:08.000000000 +0100
+++ linux/include/pcmcia/ds.h 2003-03-22 16:12:25.000000000 +0100
@@ -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 @@
 #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 */
-
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This archive was generated by hypermail 2b29 : Sun Mar 23 2003 - 22:00:41 EST