From 1ddb7c98d44b898cfe0443c1e242cebfb0479d46 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 13 Feb 2006 20:09:10 -0800 Subject: [SPARC64]: Prevent registering wrong serial console. If the console is not for a particular Sun serial controller, set the drv->cons to NULL. Signed-off-by: David S. Miller --- drivers/serial/sunzilog.c | 34 ++++++++++++++++++++++++++++------ 1 file changed, 28 insertions(+), 6 deletions(-) (limited to 'drivers/serial/sunzilog.c') diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c index 5cc4d4c2935..5aa74e7a954 100644 --- a/drivers/serial/sunzilog.c +++ b/drivers/serial/sunzilog.c @@ -1390,7 +1390,6 @@ static struct console sunzilog_console = { .index = -1, .data = &sunzilog_reg, }; -#define SUNZILOG_CONSOLE (&sunzilog_console) static int __init sunzilog_console_init(void) { @@ -1413,8 +1412,31 @@ static int __init sunzilog_console_init(void) register_console(&sunzilog_console); return 0; } + +static inline struct console *SUNZILOG_CONSOLE(void) +{ + int i; + + if (con_is_present()) + return NULL; + + for (i = 0; i < NUM_CHANNELS; i++) { + int this_minor = sunzilog_reg.minor + i; + + if ((this_minor - 64) == (serial_console - 1)) + break; + } + if (i == NUM_CHANNELS) + return NULL; + + sunzilog_console.index = i; + sunzilog_port_table[i].flags |= SUNZILOG_FLAG_IS_CONS; + + return &sunzilog_console; +} + #else -#define SUNZILOG_CONSOLE (NULL) +#define SUNZILOG_CONSOLE() (NULL) #define sunzilog_console_init() do { } while (0) #endif @@ -1666,14 +1688,14 @@ static int __init sunzilog_ports_init(void) } sunzilog_reg.nr = uart_count; - sunzilog_reg.cons = SUNZILOG_CONSOLE; - sunzilog_reg.minor = sunserial_current_minor; - sunserial_current_minor += uart_count; ret = uart_register_driver(&sunzilog_reg); if (ret == 0) { - sunzilog_console_init(); + sunzilog_reg.cons = SUNZILOG_CONSOLE(); + + sunserial_current_minor += uart_count; + for (i = 0; i < NUM_CHANNELS; i++) { struct uart_sunzilog_port *up = &sunzilog_port_table[i]; -- cgit v1.2.3