1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/css_gr_gk20a.c b/drivers/gpu/nvgpu/gk20a/css_gr_gk20a.c
index b23d2794..34910152 100644
--- a/drivers/gpu/nvgpu/gk20a/css_gr_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/css_gr_gk20a.c
@@ -569,8 +569,10 @@ static int css_gr_free_client_data(struct gk20a_cs_snapshot *data,
                                 client->perfmon_start, client->perfmon_count))
                         ret = -EINVAL;
         }
+
         if (client->dma_handler) {
-                dma_buf_vunmap(client->dma_handler, client->snapshot);
+                if (client->snapshot)
+                        dma_buf_vunmap(client->dma_handler, client->snapshot);
                 dma_buf_put(client->dma_handler);
         }