drm/sprd: fix always gem creation of imported dma-buf

[profile/mobile/platform/kernel/linux-3.10-sc7730.git] / drivers / gpu / drm / sprd / sprd_drm_gem.c

diff --git a/drivers/gpu/drm/sprd/sprd_drm_gem.c b/drivers/gpu/drm/sprd/sprd_drm_gem.c
index f92a3f1..1fe2363 100755 (executable)
--- a/drivers/gpu/drm/sprd/sprd_drm_gem.c
+++ b/drivers/gpu/drm/sprd/sprd_drm_gem.c
@@ -537,6 +537,21 @@ struct drm_gem_object *sprd_prime_import(struct drm_device *dev,
                goto err;
        }
 
+       obj = ion_get_gem(ion_handle);
+       if (obj) {
+               sprd_gem_obj = to_sprd_gem_obj(obj);
+               if (sprd_gem_obj->buffer->ion_handle != ion_handle) {
+                       DRM_ERROR("Unable get GEM object from ion\n");
+                       ret = -EINVAL;
+                       goto err;
+               }
+
+               drm_gem_object_reference(obj);
+               ion_free(private->sprd_drm_ion_client, ion_handle);
+
+               return obj;
+       }
+
        buf = sprd_drm_init_buf(dev, size);
        if (!buf) {
                DRM_ERROR("Unable to allocate the GEM buffer\n");