[SERIAL] serial8250: convert to the new platform device interface

Do not use platform_device_register_simple() as it is going away.
Also set up driver's owner to create link driver->module in sysfs.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 20 insertions, 10 deletions

diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index fb610c3634a4..d9ce8c549416 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -2454,6 +2454,7 @@ static struct platform_driver serial8250_isa_driver = {
         .resume         = serial8250_resume,
         .driver         = {
                 .name   = "serial8250",
+                .owner  = THIS_MODULE,
         },
 };
 
@@ -2594,21 +2595,30 @@ static int __init serial8250_init(void)
         if (ret)
                 goto out;
 
-        serial8250_isa_devs = platform_device_register_simple("serial8250",
-                                         PLAT8250_DEV_LEGACY, NULL, 0);
-        if (IS_ERR(serial8250_isa_devs)) {
-                ret = PTR_ERR(serial8250_isa_devs);
-                goto unreg;
+        ret = platform_driver_register(&serial8250_isa_driver);
+        if (ret)
+                goto unreg_uart_drv;
+
+        serial8250_isa_devs = platform_device_alloc("serial8250",
+                                                    PLAT8250_DEV_LEGACY);
+        if (!serial8250_isa_devs) {
+                ret = -ENOMEM;
+                goto unreg_plat_drv;
         }
 
+        ret = platform_device_add(serial8250_isa_devs);
+        if (ret)
+                goto put_dev;
+
         serial8250_register_ports(&serial8250_reg, &serial8250_isa_devs->dev);
 
-        ret = platform_driver_register(&serial8250_isa_driver);
-        if (ret == 0)
-                goto out;
+        goto out;
 
-        platform_device_unregister(serial8250_isa_devs);
- unreg:
+ put_dev:
+        platform_device_put(serial8250_isa_devs);
+ unreg_plat_drv:
+        platform_driver_unregister(&serial8250_isa_driver);
+ unreg_uart_drv:
         uart_unregister_driver(&serial8250_reg);
  out:
         return ret;