The driver reuses the OF node of the parent multi-function device but
fails to take another reference to balance the one dropped by the
platform bus code when unbinding the MFD and deregistering the child
devices.

Fix this by using the intended helper for reusing OF nodes.

Fixes: 435af89786c6 ("rtc: New driver for RTC in Netronix embedded controller")
Cc: stable@vger.kernel.org	# 5.13
Cc: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Johan Hovold <johan@kernel.org>
---
 drivers/rtc/rtc-ntxec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-ntxec.c b/drivers/rtc/rtc-ntxec.c
index 850ca49186fd..d28ddb34e19e 100644
--- a/drivers/rtc/rtc-ntxec.c
+++ b/drivers/rtc/rtc-ntxec.c
@@ -110,7 +110,7 @@ static int ntxec_rtc_probe(struct platform_device *pdev)
 	struct rtc_device *dev;
 	struct ntxec_rtc *rtc;
 
-	pdev->dev.of_node = pdev->dev.parent->of_node;
+	device_set_of_node_from_dev(&pdev->dev, pdev->dev.parent);
 
 	rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);
 	if (!rtc)
-- 
2.52.0

On Tue, 07 Apr 2026 14:27:17 +0200, Johan Hovold wrote:
> The driver reuses the OF node of the parent multi-function device but
> fails to take another reference to balance the one dropped by the
> platform bus code when unbinding the MFD and deregistering the child
> devices.
> 
> Fix this by using the intended helper for reusing OF nodes.
> 
> [...]

Applied, thanks!

[1/1] rtc: ntxec: fix OF node reference imbalance
      https://git.kernel.org/abelloni/c/30c4d2f26bb3

Best regards,

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com