[PATCH 14/15] drm/vmwgfx: Use dma_buf from GEM object instance

[Thomas Zimmermann]

Avoid dereferencing struct drm_gem_object.import_attach for the
imported dma-buf. The dma_buf field in the GEM object instance refers
to the same buffer. Prepares to make import_attach optional.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Zack Rusin <zack.rusin at broadcom.com>
Cc: Broadcom internal kernel review list <bcm-kernel-feedback-list at broadcom.com>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_gem.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c
index 200240fecf7d..2a252e1d5e9f 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c
@@ -85,10 +85,10 @@ static int vmw_gem_vmap(struct drm_gem_object *obj, struct iosys_map *map)
 	int ret;
 
 	if (drm_gem_is_imported(obj)) {
-		ret = dma_buf_vmap(obj->import_attach->dmabuf, map);
+		ret = dma_buf_vmap(obj->dma_buf, map);
 		if (!ret) {
 			if (drm_WARN_ON(obj->dev, map->is_iomem)) {
-				dma_buf_vunmap(obj->import_attach->dmabuf, map);
+				dma_buf_vunmap(obj->dma_buf, map);
 				return -EIO;
 			}
 		}
@@ -102,7 +102,7 @@ static int vmw_gem_vmap(struct drm_gem_object *obj, struct iosys_map *map)
 static void vmw_gem_vunmap(struct drm_gem_object *obj, struct iosys_map *map)
 {
 	if (drm_gem_is_imported(obj))
-		dma_buf_vunmap(obj->import_attach->dmabuf, map);
+		dma_buf_vunmap(obj->dma_buf, map);
 	else
 		drm_gem_ttm_vunmap(obj, map);
 }
-- 
2.48.1