zx_pmt_unpin

SUMMARY

Unpin pages and revoke device access to them.

#include <zircon/syscalls.h>

zx_status_t zx_pmt_unpin(zx_handle_t handle);

zx_pmt_unpin() unpins pages that were previously pinned by [zx_bti_pin()], and revokes the access that was granted by the pin call.

Always consumes handle. It is invalid to use handle afterwards, including to call [zx_handle_close()] on it.

TODO(fxbug.dev/32253)

On success, zx_pmt_unpin() returns ZX_OK. In the event of failure, a negative error value is returned.

ZX_ERR_BAD_HANDLE handle is not a valid handle.

ZX_ERR_WRONG_TYPE handle is not a PMT handle.