[PATCH] libertas: remove thread.h and make kthread usage clearer

Remove the thread.h abstractions and opencode kthread stuff
to make it clearer.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index e0eab6e..401a630 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -1134,7 +1134,7 @@
 		lbs_deb_cmd("PREP_CMD: No free cmdnode\n");
 
 		/* Wake up main thread to execute next command */
-		wake_up_interruptible(&priv->mainthread.waitq);
+		wake_up_interruptible(&priv->waitq);
 		ret = -1;
 		goto done;
 	}
@@ -1402,7 +1402,7 @@
 
 	libertas_queue_cmd(adapter, cmdnode, 1);
 	adapter->nr_cmd_pending++;
-	wake_up_interruptible(&priv->mainthread.waitq);
+	wake_up_interruptible(&priv->waitq);
 
 	if (wait_option & CMD_OPTION_WAITFORRSP) {
 		lbs_deb_cmd("PREP_CMD: Wait for CMD response\n");