diff options
| author | Francisco Jerez <currojerez@riseup.net> | 2010-10-18 05:56:14 +0400 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2010-12-03 08:06:43 +0300 |
| commit | 2a6789ae5e8a6b25a0835834655205166a757a81 (patch) | |
| tree | b519dacc6f1e5d0f85e2e57fd1fdecdbc60cbfee /drivers/gpu/drm/nouveau/nouveau_fence.c | |
| parent | f091a3d403065416b7d27221bbeb956481132ffd (diff) | |
| download | linux-2a6789ae5e8a6b25a0835834655205166a757a81.tar.xz | |
drm/nouveau: Make fences take a weak channel reference.
Fences didn't increment the channel reference count, and the fenced
channel could go away at any time. Fixes a potential race in
nouveau_fence_update().
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_fence.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_fence.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c index 0a22955998e8..e1ae9bab6e41 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fence.c +++ b/drivers/gpu/drm/nouveau/nouveau_fence.c @@ -64,6 +64,7 @@ nouveau_fence_del(struct kref *ref) struct nouveau_fence *fence = container_of(ref, struct nouveau_fence, refcount); + nouveau_channel_ref(NULL, &fence->channel); kfree(fence); } @@ -113,7 +114,7 @@ nouveau_fence_new(struct nouveau_channel *chan, struct nouveau_fence **pfence, if (!fence) return -ENOMEM; kref_init(&fence->refcount); - fence->channel = chan; + nouveau_channel_ref(chan, &fence->channel); if (emit) ret = nouveau_fence_emit(fence); |