[SERIAL] sunsu: Handle keyboard and mouse ports directly.

The sunsu_ports[] array exists merely to be able to easily
use an integer index to get at the proper serial console
port struct.

We size this only for real ports, not for the keyboard and
mouse, and thus keyboard and mouse port registration would
fail.

Fix this by dynamically allocating the port struct for the
keyboard and mouse, instead of using the sunsu_ports[]
array.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/serial/sunsu.c b/drivers/serial/sunsu.c
index f9013baba05b4f09f6bb1b06e038e9db9b39f907..93bdaa3169fcc1a17bd32bf905db7c1bfd877c15 100644 (file)
--- a/drivers/serial/sunsu.c
+++ b/drivers/serial/sunsu.c
@@ -1406,25 +1406,35 @@ static int __devinit su_probe(struct of_device *op, const struct of_device_id *m
        struct device_node *dp = op->node;
        struct uart_sunsu_port *up;
        struct resource *rp;
+       enum su_type type;
        int err;
 
-       if (inst >= UART_NR)
-               return -EINVAL;
+       type = su_get_type(dp);
+       if (type == SU_PORT_PORT) {
+               if (inst >= UART_NR)
+                       return -EINVAL;
+               up = &sunsu_ports[inst];
+       } else {
+               up = kzalloc(sizeof(*up), GFP_KERNEL);
+               if (!up)
+                       return -ENOMEM;
+       }
 
-       up = &sunsu_ports[inst];
        up->port.line = inst;
 
        spin_lock_init(&up->port.lock);
 
-       up->su_type = su_get_type(dp);
+       up->su_type = type;
 
        rp = &op->resource[0];
-       up->port.mapbase = op->resource[0].start;
-
+       up->port.mapbase = rp->start;
        up->reg_size = (rp->end - rp->start) + 1;
        up->port.membase = of_ioremap(rp, 0, up->reg_size, "su");
-       if (!up->port.membase)
+       if (!up->port.membase) {
+               if (type != SU_PORT_PORT)
+                       kfree(up);
                return -ENOMEM;
+       }
 
        up->port.irq = op->irqs[0];
 
@@ -1436,8 +1446,11 @@ static int __devinit su_probe(struct of_device *op, const struct of_device_id *m
        err = 0;
        if (up->su_type == SU_PORT_KBD || up->su_type == SU_PORT_MS) {
                err = sunsu_kbd_ms_init(up);
-               if (err)
+               if (err) {
+                       kfree(up);
                        goto out_unmap;
+               }
+               dev_set_drvdata(&op->dev, up);
 
                return 0;
        }
@@ -1476,8 +1489,12 @@ static int __devexit su_remove(struct of_device *dev)
 #ifdef CONFIG_SERIO
                serio_unregister_port(&up->serio);
 #endif
-       } else if (up->port.type != PORT_UNKNOWN)
+               kfree(up);
+       } else if (up->port.type != PORT_UNKNOWN) {
                uart_remove_one_port(&sunsu_reg, &up->port);
+       }
+
+       dev_set_drvdata(&dev->dev, NULL);
 
        return 0;
 }