drm/vmwgfx: Fix legacy surface reference size copyback

Surfaces created using the guest-backed surface interface only keeps the base mip size, so only copy that if the legacy surface reference ioctl requests the size information. Signed-off-by: Thomas Hellstrom <[email protected]> Reviewed-by: Jakob Bornecrantz <[email protected]>
skynet · Feb 5, 2014 · c1a2137 · c1a2137
1 parent 0ccbbae
commit c1a2137
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
@@ -908,8 +908,8 @@ int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
 	    rep->size_addr;
 
 	if (user_sizes)
-		ret = copy_to_user(user_sizes, srf->sizes,
-				   srf->num_sizes * sizeof(*srf->sizes));
+		ret = copy_to_user(user_sizes, &srf->base_size,
+				   sizeof(srf->base_size));
 	if (unlikely(ret != 0)) {
 		DRM_ERROR("copy_to_user failed %p %u\n",
 			  user_sizes, srf->num_sizes);