commit b079d3775237 in 5.15.y

[Rasmus Villemoes <rasmus.villemoes@xxxxxxxxx>]

Hi,

I think something went slightly wrong when 7c7f9bc98 (serial: Deassert
Transmit Enable on probe in driver-specific way) got backported to
5.15.y. In fsl_lpuart.c, the original had this

 failed_irq_request:
-failed_get_rs485:
        uart_remove_one_port(&lpuart_reg, &sport->port);
 failed_attach_port:
+failed_get_rs485:
 failed_reset:
        lpuart_disable_clks(sport);
        return ret;

in the error path, but that is missing in the backport. So if we now hit
the 'goto failed_get_rs485;', we'll do uart_remove_one_port() while
uart_add_one_port() hasn't been done.

Rasmus