| # zx_pmt_unpin |
| |
| ## NAME |
| |
| pmt_unpin - unpin pages and revoke device access to them |
| |
| ## SYNOPSIS |
| |
| ``` |
| #include <zircon/syscalls.h> |
| |
| zx_status_t zx_pmt_unpin(zx_handle_t pmt); |
| ``` |
| |
| ## DESCRIPTION |
| |
| **pmt_unpin**() unpins pages that were previously pinned by **bti_pin**(), |
| and revokes the access that was granted by the pin call. |
| |
| Always consumes the handle *pmt*. It is invalid to use *pmt* afterwards, |
| including to call **handle_close**() on it. |
| |
| ## RETURN VALUE |
| |
| On success, **pmt_unpin**() returns *ZX_OK*. |
| In the event of failure, a negative error value is returned. |
| |
| ## ERRORS |
| |
| **ZX_ERR_BAD_HANDLE** *pmt* is not a valid handle. |
| |
| **ZX_ERR_WRONG_TYPE** *pmt* is not a PMT handle. |
| |
| ## SEE ALSO |
| |
| [bti_create](bti_create.md), |
| [bti_release_quarantine](bti_release_quarantine.md), |
| [bti_pin](bti_pin.md). |
