[PATCH 3/7] drm/tegra: Removed fb from struct tegra_fbdev

[Thomas Zimmermann]

Fbdev's struct fb_helper stores a pointer to the framebuffer. Remove
struct tegra_fbdev.fb, which contains the same value. No functional
changes.

Signed-off-by: Thomas Zimmermann <tzimmerm...@suse.de>
---
 drivers/gpu/drm/tegra/drm.h |  1 -
 drivers/gpu/drm/tegra/fb.c  | 23 ++++++++++++-----------
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h
index 845e60f144c7..8f8e5cda78da 100644
--- a/drivers/gpu/drm/tegra/drm.h
+++ b/drivers/gpu/drm/tegra/drm.h
@@ -32,7 +32,6 @@ struct reset_control;
 #ifdef CONFIG_DRM_FBDEV_EMULATION
 struct tegra_fbdev {
        struct drm_fb_helper base;
-       struct drm_framebuffer *fb;
 };
 #endif
 
diff --git a/drivers/gpu/drm/tegra/fb.c b/drivers/gpu/drm/tegra/fb.c
index bfebe2786d61..1ee4771b77d3 100644
--- a/drivers/gpu/drm/tegra/fb.c
+++ b/drivers/gpu/drm/tegra/fb.c
@@ -217,7 +217,6 @@ static const struct fb_ops tegra_fb_ops = {
 static int tegra_fbdev_probe(struct drm_fb_helper *helper,
                             struct drm_fb_helper_surface_size *sizes)
 {
-       struct tegra_fbdev *fbdev = to_tegra_fbdev(helper);
        struct tegra_drm *tegra = helper->dev->dev_private;
        struct drm_device *drm = helper->dev;
        struct drm_mode_fb_cmd2 cmd = { 0 };
@@ -252,16 +251,15 @@ static int tegra_fbdev_probe(struct drm_fb_helper *helper,
                return PTR_ERR(info);
        }
 
-       fbdev->fb = tegra_fb_alloc(drm, &cmd, &bo, 1);
-       if (IS_ERR(fbdev->fb)) {
-               err = PTR_ERR(fbdev->fb);
+       fb = tegra_fb_alloc(drm, &cmd, &bo, 1);
+       if (IS_ERR(fb)) {
+               err = PTR_ERR(fb);
                dev_err(drm->dev, "failed to allocate DRM framebuffer: %d\n",
                        err);
                drm_gem_object_put(&bo->gem);
-               return PTR_ERR(fbdev->fb);
+               return PTR_ERR(fb);
        }
 
-       fb = fbdev->fb;
        helper->fb = fb;
        helper->info = info;
 
@@ -349,10 +347,13 @@ static int tegra_fbdev_init(struct tegra_fbdev *fbdev,
 
 static void tegra_fbdev_exit(struct tegra_fbdev *fbdev)
 {
-       drm_fb_helper_unregister_info(&fbdev->base);
+       struct drm_fb_helper *helper = &fbdev->base;
+       struct drm_framebuffer *fb = helper->fb;
 
-       if (fbdev->fb) {
-               struct tegra_bo *bo = tegra_fb_get_plane(fbdev->fb, 0);
+       drm_fb_helper_unregister_info(helper);
+
+       if (fb) {
+               struct tegra_bo *bo = tegra_fb_get_plane(fb, 0);
 
                /* Undo the special mapping we made in fbdev probe. */
                if (bo && bo->pages) {
@@ -360,10 +361,10 @@ static void tegra_fbdev_exit(struct tegra_fbdev *fbdev)
                        bo->vaddr = NULL;
                }
 
-               drm_framebuffer_remove(fbdev->fb);
+               drm_framebuffer_remove(fb);
        }
 
-       drm_fb_helper_fini(&fbdev->base);
+       drm_fb_helper_fini(helper);
        tegra_fbdev_free(fbdev);
 }
 #endif
-- 
2.40.0