diff options
| author | Jonathan Gray <jsg@jsg.id.au> | 2013-06-05 15:46:25 +1000 |
|---|---|---|
| committer | Jonathan Gray <jsg@jsg.id.au> | 2013-08-12 10:41:58 +1000 |
| commit | b7e237e612ceabcb55b197287a575847fdf2edd2 (patch) | |
| tree | c36e420ef71dd37ad9f7118706c8064aac9d7c8d /sys | |
| parent | 824cf100f780127d8b945b13e823b111c3ba041c (diff) | |
inc the bo refcount in ttm_bo_mmap
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/pci/drm/ttm/ttm_bo_vm.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/sys/dev/pci/drm/ttm/ttm_bo_vm.c b/sys/dev/pci/drm/ttm/ttm_bo_vm.c index 892aedc72ed..c393d2602bc 100644 --- a/sys/dev/pci/drm/ttm/ttm_bo_vm.c +++ b/sys/dev/pci/drm/ttm/ttm_bo_vm.c @@ -299,10 +299,8 @@ ttm_bo_mmap(voff_t off, vsize_t size, struct ttm_bo_device *bdev) rw_enter_read(&bdev->vm_lock); bo = ttm_bo_vm_lookup_rb(bdev, off >> PAGE_SHIFT, size >> PAGE_SHIFT); -#if 0 - if (likely(bo != NULL) && !kref_get_unless_zero(&bo->kref)) - bo = NULL; -#endif + if (likely(bo != NULL)) + refcount_acquire(&bo->kref); rw_exit_read(&bdev->vm_lock); if (unlikely(bo == NULL)) { |