From 378a33a686d457fa5a38d6ad134f5385a9cc7860 Mon Sep 17 00:00:00 2001
From: Dominik Brodowski <linux@dominikbrodowski.net>
Date: Mon, 27 Jun 2005 16:28:54 -0700
Subject: [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>
---
drivers/pcmcia/cs.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
(limited to 'drivers')
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);
--
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