ACPI: dock: Make the dock station driver a platform device driver.
Make the dock station driver a platform device driver so that
we can create sysfs entries under /sys/device/platform.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index bf5b79e..336d94c 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -27,6 +27,7 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/notifier.h>
+#include <linux/platform_device.h>
#include <linux/jiffies.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
@@ -39,6 +40,8 @@
MODULE_LICENSE("GPL");
static struct atomic_notifier_head dock_notifier_list;
+static struct platform_device dock_device;
+static char dock_device_name[] = "dock";
struct dock_station {
acpi_handle handle;
@@ -629,6 +632,15 @@
spin_lock_init(&dock_station->hp_lock);
ATOMIC_INIT_NOTIFIER_HEAD(&dock_notifier_list);
+ /* initialize platform device stuff */
+ dock_device.name = dock_device_name;
+ ret = platform_device_register(&dock_device);
+ if (ret) {
+ printk(KERN_ERR PREFIX "Error registering dock device\n", ret);
+ kfree(dock_station);
+ return ret;
+ }
+
/* Find dependent devices */
acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX, find_dock_devices, dock_station,
@@ -638,7 +650,8 @@
dd = alloc_dock_dependent_device(handle);
if (!dd) {
kfree(dock_station);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto dock_add_err_unregister;
}
add_dock_dependent_device(dock_station, dd);
@@ -658,8 +671,10 @@
return 0;
dock_add_err:
- kfree(dock_station);
kfree(dd);
+dock_add_err_unregister:
+ platform_device_unregister(&dock_device);
+ kfree(dock_station);
return ret;
}
@@ -686,6 +701,9 @@
if (ACPI_FAILURE(status))
printk(KERN_ERR "Error removing notify handler\n");
+ /* cleanup sysfs */
+ platform_device_unregister(&dock_device);
+
/* free dock station memory */
kfree(dock_station);
return 0;