From: David S. Miller <davem@sunset.davemloft.net>
Date: Tue, 14 Feb 2006 04:09:10 +0000 (-0800)
Subject: [SPARC64]: Prevent registering wrong serial console.
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=1ddb7c98d44b898cfe0443c1e242cebfb0479d46;p=openwrt%2Fstaging%2Fblogic.git

[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/sunsab.c b/drivers/serial/sunsab.c
index 85664228a0b6..02f62da546b5 100644
--- a/drivers/serial/sunsab.c
+++ b/drivers/serial/sunsab.c
@@ -955,14 +955,13 @@ static struct console sunsab_console = {
 	.index	=	-1,
 	.data	=	&sunsab_reg,
 };
-#define SUNSAB_CONSOLE	(&sunsab_console)
 
-static void __init sunsab_console_init(void)
+static inline struct console *SUNSAB_CONSOLE(void)
 {
 	int i;
 
 	if (con_is_present())
-		return;
+		return NULL;
 
 	for (i = 0; i < num_channels; i++) {
 		int this_minor = sunsab_reg.minor + i;
@@ -971,13 +970,14 @@ static void __init sunsab_console_init(void)
 			break;
 	}
 	if (i == num_channels)
-		return;
+		return NULL;
 
 	sunsab_console.index = i;
-	register_console(&sunsab_console);
+
+	return &sunsab_console;
 }
 #else
-#define SUNSAB_CONSOLE		(NULL)
+#define SUNSAB_CONSOLE()	(NULL)
 #define sunsab_console_init()	do { } while (0)
 #endif
 
@@ -1124,7 +1124,6 @@ static int __init sunsab_init(void)
 
 	sunsab_reg.minor = sunserial_current_minor;
 	sunsab_reg.nr = num_channels;
-	sunsab_reg.cons = SUNSAB_CONSOLE;
 
 	ret = uart_register_driver(&sunsab_reg);
 	if (ret < 0) {
@@ -1143,10 +1142,10 @@ static int __init sunsab_init(void)
 		return ret;
 	}
 
+	sunsab_reg.cons = SUNSAB_CONSOLE();
+
 	sunserial_current_minor += num_channels;
 	
-	sunsab_console_init();
-
 	for (i = 0; i < num_channels; i++) {
 		struct uart_sunsab_port *up = &sunsab_ports[i];
 
diff --git a/drivers/serial/sunsu.c b/drivers/serial/sunsu.c
index 4e453fa966ae..3313cb2a355a 100644
--- a/drivers/serial/sunsu.c
+++ b/drivers/serial/sunsu.c
@@ -1464,18 +1464,17 @@ static struct console sunsu_cons = {
 	.index	=	-1,
 	.data	=	&sunsu_reg,
 };
-#define SUNSU_CONSOLE	(&sunsu_cons)
 
 /*
  *	Register console.
  */
 
-static int __init sunsu_serial_console_init(void)
+static inline struct console *SUNSU_CONSOLE(void)
 {
 	int i;
 
 	if (con_is_present())
-		return 0;
+		return NULL;
 
 	for (i = 0; i < UART_NR; i++) {
 		int this_minor = sunsu_reg.minor + i;
@@ -1484,16 +1483,16 @@ static int __init sunsu_serial_console_init(void)
 			break;
 	}
 	if (i == UART_NR)
-		return 0;
+		return NULL;
 	if (sunsu_ports[i].port_node == 0)
-		return 0;
+		return NULL;
 
 	sunsu_cons.index = i;
-	register_console(&sunsu_cons);
-	return 0;
+
+	return &sunsu_cons;
 }
 #else
-#define SUNSU_CONSOLE			(NULL)
+#define SUNSU_CONSOLE()			(NULL)
 #define sunsu_serial_console_init()	do { } while (0)
 #endif
 
@@ -1523,16 +1522,17 @@ static int __init sunsu_serial_init(void)
 	}
 
 	sunsu_reg.minor = sunserial_current_minor;
-	sunserial_current_minor += instance;
 
 	sunsu_reg.nr = instance;
-	sunsu_reg.cons = SUNSU_CONSOLE;
 
 	ret = uart_register_driver(&sunsu_reg);
 	if (ret < 0)
 		return ret;
 
-	sunsu_serial_console_init();
+	sunserial_current_minor += instance;
+
+	sunsu_reg.cons = SUNSU_CONSOLE();
+
 	for (i = 0; i < UART_NR; i++) {
 		struct uart_sunsu_port *up = &sunsu_ports[i];
 
diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c
index 5cc4d4c2935c..5aa74e7a954e 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];