On Thu, Nov 20, 2014 at 07:00:56PM +0100, Arianna Avanzini wrote:
> Some RS232 adapters handled by this driver are hotpluggable. The function
> serial8250_console_setup() is called during device init and is defined with
> the __init macro. In case the driver is built-in, hotplugging the device after
> the initialization phase has been completed (and the related memory has been
> freed) results in a kernel crash.
> This commit fixes the issue by removing __init from the function definition.
>
> Signed-off-by: Arianna Avanzini <avanzini.arianna@xxxxxxxxx>
> ---
> drivers/tty/serial/8250/8250_core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
> index ca5cfdc..ca8108d 100644
> --- a/drivers/tty/serial/8250/8250_core.c
> +++ b/drivers/tty/serial/8250/8250_core.c
> @@ -3237,7 +3237,7 @@ serial8250_console_write(struct console *co, const char *s, unsigned int count)
> serial8250_rpm_put(up);
> }
>
> -static int __init serial8250_console_setup(struct console *co, char *options)
> +static int serial8250_console_setup(struct console *co, char *options)
> {
> struct uart_port *port;
> int baud = 9600;
> --
> 2.1.3
I don't apply "RFC" patches as it implies you don't even know if this
works or not.
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