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libdrm/nouveau: incr refcount on ref fence before decr on old fence

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This commit is contained in:
Ben Skeggs 2009-03-20 10:24:40 +10:00
parent 00d8e960ca
commit c37fca4ef6
1 changed files with 5 additions and 11 deletions
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16
libdrm/nouveau/nouveau_fence.c
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@ -96,22 +96,16 @@ nouveau_fence_new(struct nouveau_channel *chan, struct nouveau_fence **fence)
int
nouveau_fence_ref(struct nouveau_fence *ref, struct nouveau_fence **fence)
{
struct nouveau_fence_priv *nvfence;
if (!fence)
return -EINVAL;
if (*fence) {
if (ref)
nouveau_fence(ref)->refcount++;
if (*fence)
nouveau_fence_del(fence);
*fence = NULL;
}
if (ref) {
nvfence = nouveau_fence(ref);
nvfence->refcount++;
*fence = &nvfence->base;
}
*fence = ref;
return 0;
}