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hvc_console: Add tty driver flag TTY_DRIVER_RESET_TERMIOS
After a tty hangup() or close() operation, processes might not reset the termio settings to a sane state. In order to reset the termios to its default settings the tty driver flag TTY_DRIVER_RESET_TERMIOS has been added. TTY driver flag description from include/linux/tty_driver.h: TTY_DRIVER_RESET_TERMIOS --- requests the tty layer to reset the termios setting when the last process has closed the device. Used for PTY's, in particular. Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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@ -796,7 +796,7 @@ static int hvc_init(void)
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drv->minor_start = HVC_MINOR;
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drv->type = TTY_DRIVER_TYPE_SYSTEM;
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drv->init_termios = tty_std_termios;
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drv->flags = TTY_DRIVER_REAL_RAW;
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drv->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_RESET_TERMIOS;
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tty_set_operations(drv, &hvc_ops);
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/* Always start the kthread because there can be hotplug vty adapters
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