minigbm: Map and unmap correct size

We were not mapping the entire buffer for multi-plane buffer objects.

BUG=chromium:616275
TEST=NONE
CQ-DEPEND=CL:377884

Change-Id: Ia64a6eb45310abeaed3f376479a6738ccd09f0bf
Reviewed-on: https://chromium-review.googlesource.com/377841
Commit-Ready: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drv_priv.h b/drv_priv.h
index 129d2ed..53b8da6 100644
--- a/drv_priv.h
+++ b/drv_priv.h
@@ -26,6 +26,7 @@ struct bo
 	uint32_t sizes[DRV_MAX_PLANES];
 	uint32_t strides[DRV_MAX_PLANES];
 	uint64_t format_modifiers[DRV_MAX_PLANES];
+	size_t total_size;
 	void *priv;
 	void *map_data;
 };