Commit 378a33a6 authored by Dominik Brodowski's avatar Dominik Brodowski Committed by Linus Torvalds
Browse files

[PATCH] pcmcia: release_class 



Properly wait for the class refcount to reach zero.

Signed-off-by: default avatarDominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 3448139b

drivers/pcmcia/cs.c

+15 −1
Original line number Diff line number Diff line
@@ -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);