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serial: pch_uart: fix sysrq handling for pch_uart 

When PCH_UART_CONSOLE and SERIAL_CORE_CONSOLE is not set neither, the
uart_port will have no 'sysrq' member hence their will need a '#ifdef'
in pch_uart.c to handle the case, otherwise we'll see compile error
like this:

  CC [M]  drivers/tty/serial/pch_uart.o
drivers/tty/serial/pch_uart.c: In function 'pch_uart_hal_read':
drivers/tty/serial/pch_uart.c:572:11: error: 'struct uart_port' has no member named 'sysrq'
make[4]: *** [drivers/tty/serial/pch_uart.o] Error 1

Reported-by: Randy Dunlap <rdunlap@infradead.org>
CC: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Liang Li <liang.li@windriver.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Liang Li 2013-01-24 12:31:27 +08:00 committed by Greg Kroah-Hartman
parent 58f82be334
commit e8c5b56fdc
1 changed files with 2 additions and 0 deletions
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2
drivers/tty/serial/pch_uart.c
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@ -569,10 +569,12 @@ static int pch_uart_hal_read(struct eg20t_port *priv, unsigned char *buf,
if (uart_handle_break(port))
continue;
}
#ifdef SUPPORT_SYSRQ
if (port->sysrq) {
if (uart_handle_sysrq_char(port, rbr))
continue;
}
#endif
buf[i++] = rbr;
}