2 Mar
2023
2 Mar
'23
8:23 a.m.
From: Nicolin Chen nicolinc@nvidia.com Sent: Saturday, February 25, 2023 9:52 AM
- /*
* Set ioas to NULL to block any further iommufd_access_pin_pages().* iommufd_access_unpin_pages() can continue using access-ioas_unpin.
*/- access->ioas = NULL;
- mutex_unlock(&access->ioas_lock);
- access->ops->unmap(access->data, 0, ULONG_MAX);
- mutex_lock(&access->ioas_lock);
This should check whether @unmap is valid.