diff options
| -rw-r--r-- | drivers/acpi/dock.c | 55 |
1 files changed, 19 insertions, 36 deletions
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index 4f2aa98e2cee..ee9829b47e20 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -93,40 +93,30 @@ struct dock_dependent_device { * Dock Dependent device functions * *****************************************************************************/ /** - * alloc_dock_dependent_device - allocate and init a dependent device - * @handle: the acpi_handle of the dependent device + * add_dock_dependent_device - associate a device with the dock station + * @ds: The dock station + * @handle: handle of the dependent device * - * Allocate memory for a dependent device structure for a device referenced - * by the acpi handle + * Add the dependent device to the dock's dependent device list. */ -static struct dock_dependent_device * -alloc_dock_dependent_device(acpi_handle handle) +static int +add_dock_dependent_device(struct dock_station *ds, acpi_handle handle) { struct dock_dependent_device *dd; dd = kzalloc(sizeof(*dd), GFP_KERNEL); - if (dd) { - dd->handle = handle; - INIT_LIST_HEAD(&dd->list); - INIT_LIST_HEAD(&dd->hotplug_list); - } - return dd; -} + if (!dd) + return -ENOMEM; + + dd->handle = handle; + INIT_LIST_HEAD(&dd->list); + INIT_LIST_HEAD(&dd->hotplug_list); -/** - * add_dock_dependent_device - associate a device with the dock station - * @ds: The dock station - * @dd: The dependent device - * - * Add the dependent device to the dock's dependent device list. - */ -static void -add_dock_dependent_device(struct dock_station *ds, - struct dock_dependent_device *dd) -{ spin_lock(&ds->dd_lock); list_add_tail(&dd->list, &ds->dependent_devices); spin_unlock(&ds->dd_lock); + + return 0; } /** @@ -826,7 +816,6 @@ find_dock_devices(acpi_handle handle, u32 lvl, void *context, void **rv) acpi_status status; acpi_handle tmp, parent; struct dock_station *ds = context; - struct dock_dependent_device *dd; status = acpi_bus_get_ejd(handle, &tmp); if (ACPI_FAILURE(status)) { @@ -840,11 +829,9 @@ find_dock_devices(acpi_handle handle, u32 lvl, void *context, void **rv) goto fdd_out; } - if (tmp == ds->handle) { - dd = alloc_dock_dependent_device(handle); - if (dd) - add_dock_dependent_device(ds, dd); - } + if (tmp == ds->handle) + add_dock_dependent_device(ds, handle); + fdd_out: return AE_OK; } @@ -959,7 +946,6 @@ static struct attribute_group dock_attribute_group = { static int dock_add(acpi_handle handle) { int ret; - struct dock_dependent_device *dd; struct dock_station *dock_station; struct platform_device *dock_device; @@ -1008,12 +994,9 @@ static int dock_add(acpi_handle handle) NULL); /* add the dock station as a device dependent on itself */ - dd = alloc_dock_dependent_device(handle); - if (!dd) { - ret = -ENOMEM; + ret = add_dock_dependent_device(dock_station, handle); + if (ret) goto err_rmgroup; - } - add_dock_dependent_device(dock_station, dd); dock_station_count++; list_add(&dock_station->sibling, &dock_stations); |
