tifm: use bus methods to handle probe/remove instead of driver ones.

Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

2 files changed, 47 insertions, 56 deletions

diff --git a/drivers/misc/tifm_core.c b/drivers/misc/tifm_core.c
index 6799b9cca055..dcff45a19bcb 100644
--- a/drivers/misc/tifm_core.c
+++ b/drivers/misc/tifm_core.c
@@ -60,14 +60,54 @@ static int tifm_uevent(struct device *dev, char **envp, int num_envp,
         return 0;
 }
 
+static int tifm_device_probe(struct device *dev)
+{
+        struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
+        struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
+                                               driver);
+        int rc = -ENODEV;
+
+        get_device(dev);
+        if (dev->driver && drv->probe) {
+                rc = drv->probe(sock);
+                if (!rc)
+                        return 0;
+        }
+        put_device(dev);
+        return rc;
+}
+
+static void tifm_dummy_event(struct tifm_dev *sock)
+{
+        return;
+}
+
+static int tifm_device_remove(struct device *dev)
+{
+        struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
+        struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
+                                               driver);
+
+        if (dev->driver && drv->remove) {
+                sock->card_event = tifm_dummy_event;
+                sock->data_event = tifm_dummy_event;
+                drv->remove(sock);
+                sock->dev.driver = NULL;
+        }
+
+        put_device(dev);
+        return 0;
+}
+
 #ifdef CONFIG_PM
 
 static int tifm_device_suspend(struct device *dev, pm_message_t state)
 {
         struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev);
-        struct tifm_driver *drv = fm_dev->drv;
+        struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
+                                               driver);
 
-        if (drv && drv->suspend)
+        if (dev->driver && drv->suspend)
                 return drv->suspend(fm_dev, state);
         return 0;
 }
@@ -75,9 +115,10 @@ static int tifm_device_suspend(struct device *dev, pm_message_t state)
 static int tifm_device_resume(struct device *dev)
 {
         struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev);
-        struct tifm_driver *drv = fm_dev->drv;
+        struct tifm_driver *drv = container_of(dev->driver, struct tifm_driver,
+                                               driver);
 
-        if (drv && drv->resume)
+        if (dev->driver && drv->resume)
                 return drv->resume(fm_dev);
         return 0;
 }
@@ -93,6 +134,8 @@ static struct bus_type tifm_bus_type = {
         .name    = "tifm",
         .match   = tifm_match,
         .uevent  = tifm_uevent,
+        .probe   = tifm_device_probe,
+        .remove  = tifm_device_remove,
         .suspend = tifm_device_suspend,
         .resume  = tifm_device_resume
 };
@@ -175,11 +218,6 @@ void tifm_free_device(struct device *dev)
 }
 EXPORT_SYMBOL(tifm_free_device);
 
-static void tifm_dummy_event(struct tifm_dev *sock)
-{
-        return;
-}
-
 struct tifm_dev *tifm_alloc_device(struct tifm_adapter *fm)
 {
         struct tifm_dev *dev = kzalloc(sizeof(struct tifm_dev), GFP_KERNEL);
@@ -218,55 +256,9 @@ void tifm_unmap_sg(struct tifm_dev *sock, struct scatterlist *sg, int nents,
 }
 EXPORT_SYMBOL(tifm_unmap_sg);
 
-static int tifm_device_probe(struct device *dev)
-{
-        struct tifm_driver *drv;
-        struct tifm_dev *fm_dev;
-        int rc = 0;
-        const tifm_media_id *id;
-
-        drv = container_of(dev->driver, struct tifm_driver, driver);
-        fm_dev = container_of(dev, struct tifm_dev, dev);
-        get_device(dev);
-        if (!fm_dev->drv && drv->probe && drv->id_table) {
-                rc = -ENODEV;
-                id = tifm_device_match(drv->id_table, fm_dev);
-                if (id)
-                        rc = drv->probe(fm_dev);
-                if (rc >= 0) {
-                        rc = 0;
-                        fm_dev->drv = drv;
-                }
-        }
-        if (rc)
-                put_device(dev);
-        return rc;
-}
-
-static int tifm_device_remove(struct device *dev)
-{
-        struct tifm_dev *fm_dev = container_of(dev, struct tifm_dev, dev);
-        struct tifm_driver *drv = fm_dev->drv;
-
-        if (drv) {
-                fm_dev->card_event = tifm_dummy_event;
-                fm_dev->data_event = tifm_dummy_event;
-                if (drv->remove)
-                        drv->remove(fm_dev);
-                fm_dev->drv = NULL;
-        }
-
-        put_device(dev);
-        return 0;
-}
-
 int tifm_register_driver(struct tifm_driver *drv)
 {
         drv->driver.bus = &tifm_bus_type;
-        drv->driver.probe = tifm_device_probe;
-        drv->driver.remove = tifm_device_remove;
-        drv->driver.suspend = tifm_device_suspend;
-        drv->driver.resume = tifm_device_resume;
 
         return driver_register(&drv->driver);
 }
diff --git a/include/linux/tifm.h b/include/linux/tifm.h
index 4470961655c5..ee1056396b95 100644
--- a/include/linux/tifm.h
+++ b/include/linux/tifm.h
@@ -86,7 +86,6 @@ struct tifm_dev {
         void          (*card_event)(struct tifm_dev *sock);
         void          (*data_event)(struct tifm_dev *sock);
 
-        struct tifm_driver      *drv;
         struct device           dev;
 };