[SERIAL] Factor out the common setup from the per-serial port loop.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 16 insertions, 12 deletions

diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c
index 84c8f8f592c..8f2617206e8 100644
--- a/drivers/serial/8250_pci.c
+++ b/drivers/serial/8250_pci.c
@@ -110,8 +110,9 @@ setup_port(struct pci_dev *dev, struct uart_port *port,
         if (bar >= PCI_NUM_BAR_RESOURCES)
                 return -EINVAL;
 
+        base = pci_resource_start(dev, bar);
+
         if (pci_resource_flags(dev, bar) & IORESOURCE_MEM) {
-                base = pci_resource_start(dev, bar);
                 len =  pci_resource_len(dev, bar);
 
                 if (!priv->remapped_bar[bar])
@@ -120,13 +121,16 @@ setup_port(struct pci_dev *dev, struct uart_port *port,
                         return -ENOMEM;
 
                 port->iotype = UPIO_MEM;
+                port->iobase = 0;
                 port->mapbase = base + offset;
                 port->membase = priv->remapped_bar[bar] + offset;
                 port->regshift = regshift;
         } else {
-                base = pci_resource_start(dev, bar) + offset;
                 port->iotype = UPIO_PORT;
-                port->iobase = base;
+                port->iobase = base + offset;
+                port->mapbase = 0;
+                port->membase = NULL;
+                port->regshift = 0;
         }
         return 0;
 }
@@ -991,7 +995,7 @@ static struct pci_serial_quirk *find_quirk(struct pci_dev *dev)
 }
 
 static _INLINE_ int
-get_pci_irq(struct pci_dev *dev, struct pciserial_board *board, int idx)
+get_pci_irq(struct pci_dev *dev, struct pciserial_board *board)
 {
         if (board->flags & FL_NOIRQ)
                 return 0;
@@ -1649,6 +1653,7 @@ serial_pci_matches(struct pciserial_board *board,
 static int __devinit
 pciserial_init_one(struct pci_dev *dev, const struct pci_device_id *ent)
 {
+        struct uart_port serial_port;
         struct serial_private *priv;
         struct pciserial_board *board, tmp;
         struct pci_serial_quirk *quirk;
@@ -1731,17 +1736,16 @@ pciserial_init_one(struct pci_dev *dev, const struct pci_device_id *ent)
         priv->quirk = quirk;
         pci_set_drvdata(dev, priv);
 
+        memset(&serial_port, 0, sizeof(struct uart_port));
+        serial_port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
+        serial_port.uartclk = board->base_baud * 16;
+        serial_port.irq = get_pci_irq(dev, board);
+        serial_port.dev = &dev->dev;
+
         for (i = 0; i < nr_ports; i++) {
-                struct uart_port serial_port;
-                memset(&serial_port, 0, sizeof(struct uart_port));
-
-                serial_port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF |
-                                    UPF_SHARE_IRQ;
-                serial_port.uartclk = board->base_baud * 16;
-                serial_port.irq = get_pci_irq(dev, board, i);
-                serial_port.dev = &dev->dev;
                 if (quirk->setup(dev, board, &serial_port, i))
                         break;
+
 #ifdef SERIAL_DEBUG_PCI
                 printk("Setup PCI port: port %x, irq %d, type %d\n",
                        serial_port.iobase, serial_port.irq, serial_port.iotype);