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| author | Ilia Mirkin <imirkin@alum.mit.edu> | 2016-09-09 22:34:02 -0400 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2016-09-22 17:32:20 +1000 |
| commit | 666ca3d8f19082f40745d75f3cc7cc0200ee87e3 (patch) | |
| tree | be6e161d757a2d22b0efd7725d1b9236e8a56440 /drivers | |
| parent | 47a66e45d7a7613322549c2475ea9d809baaf514 (diff) | |
| download | linux-0-day-666ca3d8f19082f40745d75f3cc7cc0200ee87e3.tar.gz linux-0-day-666ca3d8f19082f40745d75f3cc7cc0200ee87e3.tar.xz | |
drm/nouveau/fifo/nv04: avoid ramht race against cookie insertion
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv04.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv04.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv04.c index edec30fd3ecd6..0a7b6ed5ed284 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv04.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv04.c @@ -37,7 +37,10 @@ nv04_fifo_dma_object_dtor(struct nvkm_fifo_chan *base, int cookie) { struct nv04_fifo_chan *chan = nv04_fifo_chan(base); struct nvkm_instmem *imem = chan->fifo->base.engine.subdev.device->imem; + + mutex_lock(&chan->fifo->base.engine.subdev.mutex); nvkm_ramht_remove(imem->ramht, cookie); + mutex_unlock(&chan->fifo->base.engine.subdev.mutex); } static int |