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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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src/include/ipxe/serial.h
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@@ -12,5 +12,6 @@ FILE_LICENCE ( GPL2_OR_LATER );
extern void serial_putc ( int ch );
extern int serial_getc ( void );
extern int serial_ischar ( void );
extern int serial_initialized;
#endif /* _IPXE_SERIAL_H */