[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 <davem@davemloft.net>
diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c
index 5cc4d4c..5aa74e7 100644
--- a/drivers/serial/sunzilog.c
+++ b/drivers/serial/sunzilog.c
@@ -1390,7 +1390,6 @@
.index = -1,
.data = &sunzilog_reg,
};
-#define SUNZILOG_CONSOLE (&sunzilog_console)
static int __init sunzilog_console_init(void)
{
@@ -1413,8 +1412,31 @@
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 @@
}
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];