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serial_core: Unregister console in uart_remove_one_port()
If the serial port being removed is used as a console, it must also be unregistered from the console subsystem using unregister_console(). uart_ops.release_port() will release resources (e.g. iounmap() the serial port registers), causing a crash on subsequent kernel output if the console is still registered. Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -2676,6 +2676,12 @@ int uart_remove_one_port(struct uart_driver *drv, struct uart_port *uport)
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if (port->tty)
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tty_vhangup(port->tty);
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/*
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* If the port is used as a console, unregister it
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*/
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if (uart_console(uport))
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unregister_console(uport->cons);
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/*
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* Free the port IO and memory resources, if any.
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*/
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