Generate hotplug event for PCMCIA sockets being registered.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.de>

Index: 2.6.12-rc2/drivers/pcmcia/cs.c
===================================================================
--- 2.6.12-rc2.orig/drivers/pcmcia/cs.c	2005-04-09 20:57:48.000000000 +0200
+++ 2.6.12-rc2/drivers/pcmcia/cs.c	2005-04-10 01:01:58.000000000 +0200
@@ -1857,6 +1857,21 @@
 	return ret;
 } /* insert_card */
 
+static int pcmcia_socket_hotplug(struct class_device *dev, char **envp,
+				int num_envp, char *buffer, int buffer_size)
+{
+	struct pcmcia_socket *s = container_of(dev, struct pcmcia_socket, dev);
+	int i = 0, length = 0;
+
+	if (add_hotplug_env_var(envp, num_envp, &i, buffer, buffer_size,
+				&length, "SOCKET_NO=%u", s->sock))
+		return -ENOMEM;
+
+	envp[i] = NULL;
+
+	return 0;
+}
+
 /*======================================================================
 
     OS-specific module glue goes here
@@ -1886,6 +1901,7 @@
 
 struct class pcmcia_socket_class = {
 	.name = "pcmcia_socket",
+        .hotplug = pcmcia_socket_hotplug,
 	.release = pcmcia_release_socket,
 };
 EXPORT_SYMBOL(pcmcia_socket_class);