1 files changed, 26 insertions, 9 deletions

diff --git a/drivers/serial/sunsu.c b/drivers/serial/sunsu.c
index f9013baba05..93bdaa3169f 100644
--- 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;
 }