On Tue, Feb 07, 2017 at 03:10:50PM +0100, Daniel Vetter wrote:
> diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
> index 5220a7b5e6ff..074ab22a7cf3 100644
> --- a/drivers/gpu/drm/drm_fb_helper.c
> +++ b/drivers/gpu/drm/drm_fb_helper.c
> @@ -781,7 +781,9 @@ EXPORT_SYMBOL(drm_fb_helper_init);
> * @fb_helper: driver-allocated fbdev helper
> *
> * A helper to alloc fb_info and the members cmap and apertures. Called
> - * by the driver within the fb_probe fb_helper callback function.
> + * by the driver within the fb_probe fb_helper callback function. Drivers do not
> + * need to release the allocated fb_info structure themselves, this is
> + * automatically done when calling drm_fb_helper_fini().
> *
> * RETURNS:
> * fb_info pointer if things went okay, pointer containing error code
> @@ -866,9 +868,19 @@ EXPORT_SYMBOL(drm_fb_helper_release_fbi);
I was expecting to see drm_fb_helper_release_fbi() removed.
> */
> void drm_fb_helper_fini(struct drm_fb_helper *fb_helper)
> {
> - if (!drm_fbdev_emulation)
> + struct fb_info *info;
> +
> + if (!drm_fbdev_emulation || !fb_helper)
> return;
>
> + info = fb_helper->fbdev;
> + if (info) {
> + if (info->cmap.len)
> + fb_dealloc_cmap(&info->cmap);
> + framebuffer_release(info);
> + }
> + fb_helper->fbdev = NULL;
> +
> mutex_lock(&kernel_fb_helper_lock);
> if (!list_empty(&fb_helper->kernel_fb_list)) {
> list_del(&fb_helper->kernel_fb_list);
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
--
Chris Wilson, Intel Open Source Technology Centre
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