diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-08 01:01:14 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-08 01:01:14 -0300 |
| commit | e5fd91f1ef340da553f7a79da9540c3db711c937 (patch) | |
| tree | b11842027dc6641da63f4bcc524f8678263304a3 /drivers/tty/serial/8250/8250_core.c | |
| parent | 2a9b0348e685a63d97486f6749622b61e9e3292f (diff) | |
Linux-libre 4.2-gnu
Diffstat (limited to 'drivers/tty/serial/8250/8250_core.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250_core.c | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c index 87e25a6f0..2736eb262 100644 --- a/drivers/tty/serial/8250/8250_core.c +++ b/drivers/tty/serial/8250/8250_core.c @@ -85,19 +85,6 @@ static unsigned int skip_txen_test; /* force skip of txen test at init time */ #define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE) -#ifdef CONFIG_SERIAL_8250_DETECT_IRQ -#define CONFIG_SERIAL_DETECT_IRQ 1 -#endif -#ifdef CONFIG_SERIAL_8250_MANY_PORTS -#define CONFIG_SERIAL_MANY_PORTS 1 -#endif - -/* - * HUB6 is always on. This will be removed once the header - * files have been cleaned. - */ -#define CONFIG_HUB6 1 - #include <asm/serial.h> /* * SERIAL_PORT_DFNS tells us about built-in ports that have no @@ -2019,8 +2006,9 @@ EXPORT_SYMBOL_GPL(serial8250_do_set_mctrl); static void serial8250_set_mctrl(struct uart_port *port, unsigned int mctrl) { if (port->set_mctrl) - return port->set_mctrl(port, mctrl); - return serial8250_do_set_mctrl(port, mctrl); + port->set_mctrl(port, mctrl); + else + serial8250_do_set_mctrl(port, mctrl); } static void serial8250_break_ctl(struct uart_port *port, int break_state) @@ -3548,6 +3536,9 @@ static struct console univ8250_console = { static int __init univ8250_console_init(void) { + if (nr_uarts == 0) + return -ENODEV; + serial8250_isa_init_ports(); register_console(&univ8250_console); return 0; @@ -3578,7 +3569,7 @@ int __init early_serial_setup(struct uart_port *port) { struct uart_port *p; - if (port->line >= ARRAY_SIZE(serial8250_ports)) + if (port->line >= ARRAY_SIZE(serial8250_ports) || nr_uarts == 0) return -ENODEV; serial8250_isa_init_ports(); @@ -3850,7 +3841,6 @@ int serial8250_register_8250_port(struct uart_8250_port *up) uart->port.mapbase = up->port.mapbase; uart->port.mapsize = up->port.mapsize; uart->port.private_data = up->port.private_data; - uart->port.fifosize = up->port.fifosize; uart->tx_loadsz = up->tx_loadsz; uart->capabilities = up->capabilities; uart->port.throttle = up->port.throttle; @@ -3945,6 +3935,9 @@ static int __init serial8250_init(void) { int ret; + if (nr_uarts == 0) + return -ENODEV; + serial8250_isa_init_ports(); printk(KERN_INFO "Serial: 8250/16550 driver, " |