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From: Ahmad Fatoum <>
Cc:, Ahmad Fatoum <>
Subject: [PATCH master] driver: disassociate dev from device_node on unregister_device
Date: Mon, 25 Jul 2022 09:43:00 +0200	[thread overview]
Message-ID: <> (raw)

Reusing the same device node with of_platform_device_create
after unregistering an old device doesn't work, because the device_node
-> device_d association added along with deep probe isn't cleared.
Resolve this.

Fixes: 46afd4bf8fa6 ("of: platform: Keep track of populated platform devices")
Signed-off-by: Ahmad Fatoum <>
 drivers/base/driver.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index 4898e0114d56..e7288f6a61cc 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -265,6 +265,8 @@ int unregister_device(struct device_d *old_dev)
 	/* remove device from parents child list */
 	if (old_dev->parent)
+	if (dev_of_node(old_dev))
+		old_dev->device_node->dev = NULL;
 	return 0;

             reply	other threads:[~2022-07-25  7:45 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-25  7:43 Ahmad Fatoum [this message]
2022-08-08 13:43 ` Sascha Hauer

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