drm/exynos: do not release memory region from exporter.
the region should be released by exporter once dmabuf's refcount becomes 0.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 47696bb..a9bf526 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -283,11 +283,21 @@
if (!buf->pages)
return;
+ /*
+ * do not release memory region from exporter.
+ *
+ * the region will be released by exporter
+ * once dmabuf's refcount becomes 0.
+ */
+ if (obj->import_attach)
+ goto out;
+
if (exynos_gem_obj->flags & EXYNOS_BO_NONCONTIG)
exynos_drm_gem_put_pages(obj);
else
exynos_drm_free_buf(obj->dev, exynos_gem_obj->flags, buf);
+out:
exynos_drm_fini_buf(obj->dev, buf);
exynos_gem_obj->buffer = NULL;