| .. -*- coding: utf-8; mode: rst -*- |
| |
| .. _KEY_FREE: |
| |
| ============== |
| KEY_FREE |
| ============== |
| |
| Name |
| ---- |
| |
| KEY_FREE |
| |
| |
| Synopsis |
| -------- |
| .. code-block:: c |
| |
| int ioctl(int fd, KEY_FREE, int key_index) |
| |
| Arguments |
| --------- |
| |
| ``fd`` |
| File descriptor returned by open /dev/key. |
| |
| ``key_index`` |
| |
| key_index that come from the key_alloc. |
| |
| |
| Description |
| ----------- |
| this ioctl will free the key index |
| |
| Return Value |
| ------------ |
| |
| On success 0 is returned, on error -1 and the ``errno`` variable is set |
| appropriately. The generic error codes are described at the |
| :ref:`Generic Error Codes <gen-errors>` chapter. |
