From 144a29fdac4ede527008646488cd7c32d6289de7 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon, 23 Mar 2020 15:49:14 +0100
Subject: [PATCH] drm/repaper: Use drmm_add_final_kfree
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With this we can drop the final kfree from the release function.

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-16-daniel.vetter@ffwll.ch
---
 drivers/gpu/drm/tiny/repaper.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/tiny/repaper.c b/drivers/gpu/drm/tiny/repaper.c
index f5ebcaf..df5654e 100644
--- a/drivers/gpu/drm/tiny/repaper.c
+++ b/drivers/gpu/drm/tiny/repaper.c
@@ -31,6 +31,7 @@
 #include <drm/drm_format_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_managed.h>
 #include <drm/drm_modes.h>
 #include <drm/drm_rect.h>
 #include <drm/drm_probe_helper.h>
@@ -910,13 +911,10 @@ static const struct drm_mode_config_funcs repaper_mode_config_funcs = {
 
 static void repaper_release(struct drm_device *drm)
 {
-	struct repaper_epd *epd = drm_to_epd(drm);
-
 	DRM_DEBUG_DRIVER("\n");
 
 	drm_mode_config_cleanup(drm);
 	drm_dev_fini(drm);
-	kfree(epd);
 }
 
 static const uint32_t repaper_formats[] = {
@@ -1024,6 +1022,7 @@ static int repaper_probe(struct spi_device *spi)
 		kfree(epd);
 		return ret;
 	}
+	drmm_add_final_kfree(drm, epd);
 
 	drm_mode_config_init(drm);
 	drm->mode_config.funcs = &repaper_mode_config_funcs;
-- 
2.7.4