linux-kernel - [RFC PATCH 3/3] of: dynamic: add device links barrier before detach

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Message-Id: <20201014193615.1045792-4-michael.auchter@ni.com>
Date:   Wed, 14 Oct 2020 14:36:15 -0500
From:   Michael Auchter <michael.auchter@...com>
To:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     saravanak@...gle.com, robh+dt@...nel.org, frowand.list@...il.com,
        gregkh@...uxfoundation.org, rafael@...nel.org,
        Michael Auchter <michael.auchter@...com>
Subject: [RFC PATCH 3/3] of: dynamic: add device links barrier before detach

Signed-off-by: Michael Auchter <michael.auchter@...com>
---
 drivers/of/dynamic.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c
index 7478bfc8d440..a4e2881524e9 100644
--- a/drivers/of/dynamic.c
+++ b/drivers/of/dynamic.c
@@ -14,6 +14,7 @@
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/proc_fs.h>
+#include <linux/device.h>
 
 #include "of_private.h"
 
@@ -688,6 +689,8 @@ void of_changeset_destroy(struct of_changeset *ocs)
 {
 	struct of_changeset_entry *ce, *cen;
 
+	device_links_barrier();
+
 	list_for_each_entry_safe_reverse(ce, cen, &ocs->entries, node)
 		__of_changeset_entry_destroy(ce);
 }
-- 
2.25.4