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authorDominik Brodowski <linux@dominikbrodowski.net>2005-06-27 16:28:54 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-27 18:03:20 -0700
commit378a33a686d457fa5a38d6ad134f5385a9cc7860 (patch)
treed3773b8cc8dec6580b7d2b7327766e9cd8738e5d /drivers/pcmcia/cs.c
parent3448139b41b9e3b8799eed7d427cd50789dadc3e (diff)
downloadlinux-378a33a686d457fa5a38d6ad134f5385a9cc7860.tar.gz
[PATCH] pcmcia: release_class
Properly wait for the class refcount to reach zero.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/pcmcia/cs.c')
-rw-r--r--drivers/pcmcia/cs.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index 0ff4d6ec8b77..e82859d3227a 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -903,17 +903,29 @@ static int pcmcia_socket_hotplug(struct class_device *dev, char **envp,
 }
 
 
+static struct completion pcmcia_unload;
+
+static void pcmcia_release_socket_class(struct class *data)
+{
+	complete(&pcmcia_unload);
+}
+
+
 struct class pcmcia_socket_class = {
 	.name = "pcmcia_socket",
         .hotplug = pcmcia_socket_hotplug,
 	.release = pcmcia_release_socket,
+	.class_release = pcmcia_release_socket_class,
 };
 EXPORT_SYMBOL(pcmcia_socket_class);
 
 
 static int __init init_pcmcia_cs(void)
 {
-	int ret = class_register(&pcmcia_socket_class);
+	int ret;
+
+	init_completion(&pcmcia_unload);
+	ret = class_register(&pcmcia_socket_class);
 	if (ret)
 		return (ret);
 	return class_interface_register(&pccard_sysfs_interface);
@@ -923,6 +935,8 @@ static void __exit exit_pcmcia_cs(void)
 {
 	class_interface_unregister(&pccard_sysfs_interface);
 	class_unregister(&pcmcia_socket_class);
+
+	wait_for_completion(&pcmcia_unload);
 }
 
 subsys_initcall(init_pcmcia_cs);