<div dir="ltr"><div>Reviewed-by: ANusha Srivatsa <<a href="mailto:asrivats@redhat.com">asrivats@redhat.com</a>></div><div><br></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Wed, Feb 26, 2025 at 12:28 PM Thomas Zimmermann <<a href="mailto:tzimmermann@suse.de">tzimmermann@suse.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Avoid dereferencing struct drm_gem_object.import_attach for the<br>
imported dma-buf. The dma_buf field in the GEM object instance refers<br>
to the same buffer. Prepares to make import_attach optional.<br>
<br>
Signed-off-by: Thomas Zimmermann <<a href="mailto:tzimmermann@suse.de" target="_blank">tzimmermann@suse.de</a>><br>
---<br>
 drivers/gpu/drm/drm_prime.c | 8 +-------<br>
 1 file changed, 1 insertion(+), 7 deletions(-)<br>
<br>
diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c<br>
index 32a8781cfd67..bdb51c8f262e 100644<br>
--- a/drivers/gpu/drm/drm_prime.c<br>
+++ b/drivers/gpu/drm/drm_prime.c<br>
@@ -453,13 +453,7 @@ struct dma_buf *drm_gem_prime_handle_to_dmabuf(struct drm_device *dev,<br>
        }<br>
<br>
        mutex_lock(&dev->object_name_lock);<br>
-       /* re-export the original imported object */<br>
-       if (obj->import_attach) {<br>
-               dmabuf = obj->import_attach->dmabuf;<br>
-               get_dma_buf(dmabuf);<br>
-               goto out_have_obj;<br>
-       }<br>
-<br>
+       /* re-export the original imported/exported object */<br>
        if (obj->dma_buf) {<br>
                get_dma_buf(obj->dma_buf);<br>
                dmabuf = obj->dma_buf;<br>
-- <br>
2.48.1<br>
<br>
</blockquote></div></div>