linux-kernel - Re: [PATCH] serial: Fix not set tty->port race condition

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Message-ID: <b02ce9bb-721c-46cd-9f2d-79d38be0ab4f@oss.qualcomm.com>
Date: Fri, 23 Jan 2026 08:13:30 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
To: Jiri Slaby <jirislaby@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org
Cc: stable@...r.kernel.org
Subject: Re: [PATCH] serial: Fix not set tty->port race condition

On 23/01/2026 06:55, Jiri Slaby wrote:
> On 22. 01. 26, 18:00, Krzysztof Kozlowski wrote:
>>
>> diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
>> index 0534b2eb1682..116f33f0643f 100644
>> --- a/drivers/tty/serial/serial_core.c
>> +++ b/drivers/tty/serial/serial_core.c
>> @@ -3077,6 +3077,7 @@ static int serial_core_add_one_port(struct uart_driver *drv, struct uart_port *u
>>   	if (uport->cons && uport->dev)
>>   		of_console_check(uport->dev->of_node, uport->cons->name, uport->line);
>>   
>> +	tty_port_link_device(port, drv->tty_driver, uport->line);
> 
> Bah, so add a comment or I (or somebody) remove it again eventually :(.
> 

Good point.

Best regards,
Krzysztof