diff options
| -rw-r--r-- | drivers/acpi/dock.c | 40 |
1 files changed, 13 insertions, 27 deletions
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index 3bd89823402a..cfcd8eeb3b2a 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -843,8 +843,7 @@ static ssize_t show_docked(struct device *dev, { struct acpi_device *tmp; - struct dock_station *dock_station = *((struct dock_station **) - dev->platform_data); + struct dock_station *dock_station = dev->platform_data; if (ACPI_SUCCESS(acpi_bus_get_device(dock_station->handle, &tmp))) return snprintf(buf, PAGE_SIZE, "1\n"); @@ -858,8 +857,7 @@ static DEVICE_ATTR(docked, S_IRUGO, show_docked, NULL); static ssize_t show_flags(struct device *dev, struct device_attribute *attr, char *buf) { - struct dock_station *dock_station = *((struct dock_station **) - dev->platform_data); + struct dock_station *dock_station = dev->platform_data; return snprintf(buf, PAGE_SIZE, "%d\n", dock_station->flags); } @@ -872,8 +870,7 @@ static ssize_t write_undock(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int ret; - struct dock_station *dock_station = *((struct dock_station **) - dev->platform_data); + struct dock_station *dock_station = dev->platform_data; if (!count) return -EINVAL; @@ -891,8 +888,7 @@ static ssize_t show_dock_uid(struct device *dev, struct device_attribute *attr, char *buf) { unsigned long long lbuf; - struct dock_station *dock_station = *((struct dock_station **) - dev->platform_data); + struct dock_station *dock_station = dev->platform_data; acpi_status status = acpi_evaluate_integer(dock_station->handle, "_UID", NULL, &lbuf); if (ACPI_FAILURE(status)) @@ -905,8 +901,7 @@ static DEVICE_ATTR(uid, S_IRUGO, show_dock_uid, NULL); static ssize_t show_dock_type(struct device *dev, struct device_attribute *attr, char *buf) { - struct dock_station *dock_station = *((struct dock_station **) - dev->platform_data); + struct dock_station *dock_station = dev->platform_data; char *type; if (dock_station->flags & DOCK_IS_DOCK) @@ -944,20 +939,18 @@ static struct attribute_group dock_attribute_group = { */ static int dock_add(acpi_handle handle) { - int ret; - struct dock_station *dock_station; + int ret, id; + struct dock_station ds, *dock_station; struct platform_device *dock_device; + id = dock_station_count; dock_device = - platform_device_register_simple("dock", - dock_station_count, NULL, 0); + platform_device_register_data(NULL, "dock", + id, &ds, sizeof(ds)); if (IS_ERR(dock_device)) return PTR_ERR(dock_device); - /* allocate & initialize the dock_station private data */ - dock_station = kzalloc(sizeof(*dock_station), GFP_KERNEL); - if (!dock_station) - return -ENOMEM; + dock_station = dock_device->dev.platform_data; dock_station->handle = handle; dock_station->dock_device = dock_device; dock_station->last_dock_time = jiffies - HZ; @@ -968,9 +961,6 @@ static int dock_add(acpi_handle handle) mutex_init(&dock_station->hp_lock); ATOMIC_INIT_NOTIFIER_HEAD(&dock_notifier_list); - platform_device_add_data(dock_device, &dock_station, - sizeof(struct dock_station *)); - /* we want the dock device to send uevents */ dev_set_uevent_suppress(&dock_device->dev, 0); @@ -1003,9 +993,6 @@ err_rmgroup: sysfs_remove_group(&dock_device->dev.kobj, &dock_attribute_group); err_unregister: platform_device_unregister(dock_device); -out: - kfree(dock_station); - dock_station = NULL; printk(KERN_ERR "%s encountered error %d\n", __func__, ret); return ret; } @@ -1026,13 +1013,12 @@ static int dock_remove(struct dock_station *dock_station) list) kfree(dd); + list_del(&dock_station->sibling); + /* cleanup sysfs */ sysfs_remove_group(&dock_device->dev.kobj, &dock_attribute_group); platform_device_unregister(dock_device); - /* free dock station memory */ - kfree(dock_station); - dock_station = NULL; return 0; } |