From: Jean-Jacques Hiblot <jjhiblot@ti.com>
Date: Fri, 7 Dec 2018 13:50:54 +0000 (+0100)
Subject: drivers: core: nullify gd->dm_root after dm_uninit()
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=c483f4cec07fcd732ea4c4dfa98b584ed9295b3d;p=u-boot.git

drivers: core: nullify gd->dm_root after dm_uninit()

To reset the DM after a new dtb is loaded, we need to call dm_uninit()
and then dm_init(). This fails however because gd->dm_root is not nullified
by dm_uninit().
Fixing it by setting gd->dm_root in dm_uninit().

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
---

diff --git a/drivers/core/root.c b/drivers/core/root.c
index 4ce55f9cc8..e6ec7faf37 100644
--- a/drivers/core/root.c
+++ b/drivers/core/root.c
@@ -187,6 +187,7 @@ int dm_uninit(void)
 {
 	device_remove(dm_root(), DM_REMOVE_NORMAL);
 	device_unbind(dm_root());
+	gd->dm_root = NULL;
 
 	return 0;
 }