Staging: hv: mousevsc_drv: Cleanup mousevsc_drv_exit() function

To conform to the Linux device model, the device should persist even
when there is no driver bound to it. Cleanup the mousevsc_drv_exit() routine
keeping this in mind.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/hv/hv_mouse.c b/drivers/staging/hv/hv_mouse.c
index 1869e2531d409a02de0d2d8fa2b8cc40a991a38c..359e73741c484ea5da31b0e41531f1701526d420 100644 (file)
--- a/drivers/staging/hv/hv_mouse.c
+++ b/drivers/staging/hv/hv_mouse.c
@@ -915,13 +915,6 @@ static void reportdesc_callback(struct hv_device *dev, void *packet, u32 len)
        kfree(hid_dev);
 }
 
-static int mousevsc_drv_exit_cb(struct device *dev, void *data)
-{
-       struct device **curr = (struct device **)data;
-       *curr = dev;
-
-       return 1;
-}
 
 static struct  hv_driver mousevsc_drv = {
        .probe = mousevsc_probe,
@@ -930,31 +923,7 @@ static struct  hv_driver mousevsc_drv = {
 
 static void mousevsc_drv_exit(void)
 {
-       struct hv_driver *drv = &mousevsc_drv;
-       int ret;
-
-       struct device *current_dev = NULL;
-
-       while (1) {
-               current_dev = NULL;
-
-               /* Get the device */
-               ret = driver_for_each_device(&drv->driver, NULL,
-                                            (void *)&current_dev,
-                                            mousevsc_drv_exit_cb);
-               if (ret)
-                       printk(KERN_ERR "Can't find mouse device!\n");
-
-               if (current_dev == NULL)
-                       break;
-
-               /* Initiate removal from the top-down */
-               device_unregister(current_dev);
-       }
-
-       vmbus_child_driver_unregister(&drv->driver);
-
-       return;
+       vmbus_child_driver_unregister(&mousevsc_drv.driver);
 }
 
 static int __init mousevsc_init(void)