[PATCH 4/9 linux-next] drm/nouveau: use container_of to resolve nouveau_fbdev from drm_fb_helper

[Fabian Frederick]

Use container_of instead of casting first structure member.

Signed-off-by: Fabian Frederick <fabf at skynet.be>
---
Compiled but untested.

 drivers/gpu/drm/nouveau/nouveau_fbcon.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c 
b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 8bdd270..673d270 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -308,7 +308,8 @@ static int
 nouveau_fbcon_create(struct drm_fb_helper *helper,
                     struct drm_fb_helper_surface_size *sizes)
 {
-       struct nouveau_fbdev *fbcon = (struct nouveau_fbdev *)helper;
+       struct nouveau_fbdev *fbcon =
+               container_of(helper, struct nouveau_fbdev, helper);
        struct drm_device *dev = fbcon->dev;
        struct nouveau_drm *drm = nouveau_drm(dev);
        struct nvif_device *device = &drm->device;
-- 
1.9.1