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serial: samsung: Fix unintended usage of uart port 0 as console

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In s3c24xx_serial_console_setup function, if the uart port that is
being setup as a console has not been initialized, an error can be
returned instead of using uart port 0 as the default console port.
The uart port that was intended to be used as a console could be
initialized at a later point during boot and then registered as a
console. This will avoid using uart port 0 as a unintended console
port.

Signed-off-by: Thomas Abraham <[email protected]>
Signed-off-by: Kukjin Kim <[email protected]>
This commit is contained in:
Thomas Abraham 2011-06-14 19:12:26 +09:00 • committed by Kukjin Kim
commit ee430f1625
1 changed files with 2 additions and 4 deletions
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6
drivers/tty/serial/samsung.c
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@ -1416,10 +1416,8 @@ s3c24xx_serial_console_setup(struct console *co, char *options)
/* is the port configured? */
if (port->mapbase == 0x0) {
co->index = 0;
port = &s3c24xx_serial_ports[co->index].port;
}
if (port->mapbase == 0x0)
return -ENODEV;
cons_uart = port;