Signed-off-by: Thomas Hellstrom thellstrom@vmware.com Reviewed-by: Brian Paul brianp@vmware.com Reviewed-by: Dmitry Torokhov dtor@vmware.com --- 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)