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Fix refcounting / lock race.

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Reported by Steve Wilkins / Michel Dnzer.
This commit is contained in:
Thomas Hellstrom 2007-06-15 10:21:31 +02:00
parent e1b8eabeee
commit d34b2c7b9e
1 changed files with 1 additions and 1 deletions
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2
linux-core/drm_bo.c
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@ -618,6 +618,7 @@ int drm_fence_buffer_objects(drm_file_t * priv,
if (entry->fence)
drm_fence_usage_deref_locked(dev, entry->fence);
entry->fence = fence;
atomic_inc(&fence->usage);
DRM_FLAG_MASKED(entry->priv_flags, 0,
_DRM_BO_FLAG_UNFENCED);
DRM_WAKEUP(&entry->event_queue);
@ -627,7 +628,6 @@ int drm_fence_buffer_objects(drm_file_t * priv,
drm_bo_usage_deref_locked(entry);
l = f_list.next;
}
atomic_add(count, &fence->usage);
DRM_DEBUG("Fenced %d buffers\n", count);
out:
mutex_unlock(&dev->struct_mutex);