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path: root/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c
index 895ba74057d4..1d7dd38292b3 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/base.c
@@ -97,7 +97,9 @@ static void *
nvkm_instobj_dtor(struct nvkm_memory *memory)
{
struct nvkm_instobj *iobj = nvkm_instobj(memory);
+ spin_lock(&iobj->imem->lock);
list_del(&iobj->head);
+ spin_unlock(&iobj->imem->lock);
nvkm_memory_del(&iobj->parent);
return iobj;
}
@@ -190,7 +192,9 @@ nvkm_instobj_new(struct nvkm_instmem *imem, u32 size, u32 align, bool zero,
nvkm_memory_ctor(&nvkm_instobj_func_slow, &iobj->memory);
iobj->parent = memory;
iobj->imem = imem;
+ spin_lock(&iobj->imem->lock);
list_add_tail(&iobj->head, &imem->list);
+ spin_unlock(&iobj->imem->lock);
memory = &iobj->memory;
}
@@ -309,5 +313,6 @@ nvkm_instmem_ctor(const struct nvkm_instmem_func *func,
{
nvkm_subdev_ctor(&nvkm_instmem, device, index, 0, &imem->subdev);
imem->func = func;
+ spin_lock_init(&imem->lock);
INIT_LIST_HEAD(&imem->list);
}