drm/fbdev-generic: Inline clean-up helpers into drm_fbdev_fb_destroy()

The fbdev framebuffer cleanup in drm_fbdev_fb_destroy() calls
drm_fbdev_release() and drm_fbdev_cleanup(). Inline both into the
caller. No functional changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230125200415.14123-10-tzimmermann@suse.de

drivers/gpu/drm/drm_fbdev_generic.c

@@ -43,8 +43,9 @@ static int drm_fbdev_fb_release(struct fb_info *info, int user)
 	return 0;
 }
 
-static void drm_fbdev_cleanup(struct drm_fb_helper *fb_helper)
+static void drm_fbdev_fb_destroy(struct fb_info *info)
 {
+	struct drm_fb_helper *fb_helper = info->par;
 	struct fb_info *fbi = fb_helper->info;
 	void *shadow = NULL;
 
@@ -64,24 +65,10 @@ static void drm_fbdev_cleanup(struct drm_fb_helper *fb_helper)
 		drm_client_buffer_vunmap(fb_helper->buffer);
 
 	drm_client_framebuffer_delete(fb_helper->buffer);
-}
-
-static void drm_fbdev_release(struct drm_fb_helper *fb_helper)
-{
-	drm_fbdev_cleanup(fb_helper);
 	drm_client_release(&fb_helper->client);
 	kfree(fb_helper);
 }
 
-/*
- * fb_ops.fb_destroy is called by the last put_fb_info() call at the end of
- * unregister_framebuffer() or fb_release().
- */
-static void drm_fbdev_fb_destroy(struct fb_info *info)
-{
-	drm_fbdev_release(info->par);
-}
-
 static int drm_fbdev_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 {
 	struct drm_fb_helper *fb_helper = info->par;