rk fb: add ion unmap for fb

diff --git a/drivers/video/rockchip/rk_fb.c b/drivers/video/rockchip/rk_fb.c
index 95a35919d6c67d520fffb81650557de8c3bf194d..b3cfd9192fbe9a8d1a89b42948831f1de4120d52 100755 (executable)
--- a/drivers/video/rockchip/rk_fb.c
+++ b/drivers/video/rockchip/rk_fb.c
@@ -1283,8 +1283,10 @@ void rk_fb_free_dma_buf(struct rk_lcdc_driver *dev_drv,struct rk_fb_reg_win_data
                        freed_addr[freed_index++] = area_data->smem_start;
                }
 #endif
-               if(area_data->ion_handle != NULL)
+               if (area_data->ion_handle != NULL) {
+                       ion_unmap_kernel(rk_fb->ion_client, area_data->ion_handle);
                        ion_free(rk_fb->ion_client, area_data->ion_handle);
+               }
                if(area_data->acq_fence) {
                        sync_fence_put(area_data->acq_fence);
                }