static int radeonfb_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
- struct radeon_fbdev *rfbdev = (struct radeon_fbdev *)helper;
+ struct radeon_fbdev *rfbdev =
+ container_of(helper, struct radeon_fbdev, helper);
struct radeon_device *rdev = rfbdev->rdev;
struct fb_info *info;
struct drm_framebuffer *fb = NULL;