Signed-off-by: Thomas Hellstrom <thellstrom@xxxxxxxxxx>
Reviewed-by: Brian Paul <brianp@xxxxxxxxxx>
Reviewed-by: Dmitry Torokhov <dtor@xxxxxxxxxx>
---
drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 88a179e..7c6f6e3 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -699,10 +699,13 @@ static inline struct vmw_surface *vmw_surface_reference(struct vmw_surface *srf)
static inline void vmw_dmabuf_unreference(struct vmw_dma_buffer **buf)
{
struct vmw_dma_buffer *tmp_buf = *buf;
- struct ttm_buffer_object *bo = &tmp_buf->base;
+
*buf = NULL;
+ if (tmp_buf != NULL) {
+ struct ttm_buffer_object *bo = &tmp_buf->base;
- ttm_bo_unref(&bo);
+ ttm_bo_unref(&bo);
+ }
}
static inline struct vmw_dma_buffer *vmw_dmabuf_reference(struct vmw_dma_buffer *buf)
--
1.7.4.4
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