Move dma_buf_vmap/vunmap_unlocked() functions to the dynamic locking
specification by asserting that the reservation lock is held.
Acked-by: Christian König <[email protected]>
Signed-off-by: Dmitry Osipenko <[email protected]>
---
drivers/dma-buf/dma-buf.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index 51fb69048853..ceea4839c641 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -1449,6 +1449,8 @@ int dma_buf_vmap(struct dma_buf *dmabuf, struct iosys_map *map)
if (WARN_ON(!dmabuf))
return -EINVAL;
+ dma_resv_assert_held(dmabuf->resv);
+
if (!dmabuf->ops->vmap)
return -EINVAL;
@@ -1509,6 +1511,8 @@ void dma_buf_vunmap(struct dma_buf *dmabuf, struct iosys_map *map)
if (WARN_ON(!dmabuf))
return;
+ dma_resv_assert_held(dmabuf->resv);
+
BUG_ON(iosys_map_is_null(&dmabuf->vmap_ptr));
BUG_ON(dmabuf->vmapping_counter == 0);
BUG_ON(!iosys_map_is_equal(&dmabuf->vmap_ptr, map));
--
2.37.2