linux-kernel - Re: [PATCH 1/1] serial: core: Fix serial device initialization

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Message-ID: <1ab9287b-bab4-48de-a6fc-88b5f0797e6c@gmail.com>
Date: Sun, 21 Dec 2025 10:59:52 +0200
From: Cosmin Tanislav <demonsingur@...il.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 Alexander Stein <alexander.stein@...tq-group.com>
Cc: Jiri Slaby <jirislaby@...nel.org>,
 Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
 linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org
Subject: Re: [PATCH 1/1] serial: core: Fix serial device initialization



On 12/21/25 10:40 AM, Greg Kroah-Hartman wrote:
> On Fri, Dec 19, 2025 at 04:28:12PM +0100, Alexander Stein wrote:
>> During restoring sysfs fwnode information the information of_node_reused
>> was dropped. This was previously set by device_set_of_node_from_dev().
>> Add it back manually
>>
>> Fixes: 24ec03cc5512 ("serial: core: Restore sysfs fwnode information")
>> Suggested-by: Cosmin Tanislav <demonsingur@...il.com>
>> Signed-off-by: Alexander Stein <alexander.stein@...tq-group.com>
>> ---
>>   drivers/tty/serial/serial_base_bus.c | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/tty/serial/serial_base_bus.c b/drivers/tty/serial/serial_base_bus.c
>> index 8e891984cdc0d..1e1ad28d83fcf 100644
>> --- a/drivers/tty/serial/serial_base_bus.c
>> +++ b/drivers/tty/serial/serial_base_bus.c
>> @@ -74,6 +74,7 @@ static int serial_base_device_init(struct uart_port *port,
>>   	dev->parent = parent_dev;
>>   	dev->bus = &serial_base_bus_type;
>>   	dev->release = release;
>> +	dev->of_node_reused = true;
>>   
>>   	device_set_node(dev, fwnode_handle_get(dev_fwnode(parent_dev)));
>>   
>> -- 
>> 2.43.0
>>
>>
> 
> Can I get some confirmation from people that this resolves the issue, or
> should I just revert the original problem commit instead and wait for a
> tested new version?
> 

Hi Greg. I confirmed that this fixes the issue before I suggested the
fix. :D

> thanks,
> 
> greg k-h