tifm: replace per-adapter kthread with freezeable workqueue

Freezeable workqueue makes sure that adapter work items (device insertions
and removals) would be handled after the system is fully resumed. Previously
this was achieved by explicit freezing of the kthread.

Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/include/linux/tifm.h b/include/linux/tifm.h
index 57b2653..d9de792 100644
--- a/include/linux/tifm.h
+++ b/include/linux/tifm.h
@@ -111,11 +111,11 @@
 	spinlock_t              lock;
 	unsigned int            irq_status;
 	unsigned int            socket_change_set;
-	wait_queue_head_t       change_set_notify;
 	unsigned int            id;
 	unsigned int            num_sockets;
+	struct completion       *finish_me;
 	struct tifm_dev         **sockets;
-	struct task_struct      *media_switcher;
+	struct work_struct      media_switcher;
 	struct class_device     cdev;
 	struct device           *dev;
 
@@ -125,7 +125,7 @@
 struct tifm_adapter *tifm_alloc_adapter(void);
 void tifm_free_device(struct device *dev);
 void tifm_free_adapter(struct tifm_adapter *fm);
-int tifm_add_adapter(struct tifm_adapter *fm, int (*mediathreadfn)(void *data));
+int tifm_add_adapter(struct tifm_adapter *fm);
 void tifm_remove_adapter(struct tifm_adapter *fm);
 struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm);
 int tifm_register_driver(struct tifm_driver *drv);
@@ -135,7 +135,7 @@
 		int direction);
 void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
 		   int direction);
-
+void tifm_queue_work(struct work_struct *work);
 
 static inline void *tifm_get_drvdata(struct tifm_dev *dev)
 {