From 02b92adbe33e6dbd15dc6e32540b22f47c4ff0a2 Mon Sep 17 00:00:00 2001
From: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Date: Thu, 18 Apr 2019 15:27:26 +0200
Subject: drm/sun4i: Set device driver data at bind time for use in unbind
Git-commit: 02b92adbe33e6dbd15dc6e32540b22f47c4ff0a2
Patch-mainline: v5.1-rc7
References: bsc#1113722
Our sun4i_drv_unbind gets the drm device using dev_get_drvdata.
However, that driver data is never set in sun4i_drv_bind.
Set it there to avoid getting a NULL pointer at unbind time.
Fixes: 9026e0d122ac ("drm: Add Allwinner A10 Display Engine support")
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190418132727.5128-3-paul.kocialkowski@bootlin.com
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/sun4i/sun4i_drv.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -93,6 +93,8 @@ static int sun4i_drv_bind(struct device
ret = -ENOMEM;
goto free_drm;
}
+
+ dev_set_drvdata(dev, drm);
drm->dev_private = drv;
INIT_LIST_HEAD(&drv->frontend_list);
INIT_LIST_HEAD(&drv->engine_list);