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[serial] Don't enable serial console without serial support

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serial_console_init() would enable serial console support without
knowing if the serial driver succeeded or not.  As a result, the
serial console would interfere with a normal keyboard on a system
lacking serial support.

Reported-by: Jan ONDREJ (SAL) <ondrejj(at)salstar.sk>
Signed-off-by: Shao Miller <sha0.miller@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Shao Miller
2012-10-05 15:14:12 +01:00
committed by Michael Brown
parent fcdfe81764
commit a712dae709
3 changed files with 13 additions and 4 deletions
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9
src/core/serial_console.c
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@@ -18,9 +18,12 @@
struct console_driver serial_console __console_driver;
static void serial_console_init ( void ) {
/* Serial driver initialization should already be done,
* time to enable the serial console. */
serial_console.disabled = 0;
/*
* Check if serial driver initialization is done.
* If so, it's time to enable the serial console.
*/
if ( serial_initialized )
serial_console.disabled = 0;
}
struct console_driver serial_console __console_driver = {