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Diffstat (limited to 'drivers/edgetpu/edgetpu-device-group.c')
| -rw-r--r-- | drivers/edgetpu/edgetpu-device-group.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/edgetpu/edgetpu-device-group.c b/drivers/edgetpu/edgetpu-device-group.c index cb7d9d9..3e94dcd 100644 --- a/drivers/edgetpu/edgetpu-device-group.c +++ b/drivers/edgetpu/edgetpu-device-group.c @@ -730,8 +730,10 @@ static struct page **edgetpu_pin_user_pages(struct edgetpu_device_group *group, kvfree(pages); return ERR_PTR(-ENOMEM); } + mmap_read_lock(current->mm); ret = pin_user_pages(host_addr & PAGE_MASK, num_pages, foll_flags, pages, vmas); + mmap_read_unlock(current->mm); kvfree(vmas); if (ret < 0) { etdev_dbg(etdev, "pin_user_pages failed %u:%pK-%u: %d", |