[PATCH] sx: fix non-PCI build

When CONFIG_PCI is not defined (i.e.  PCI bus is disabled), the sx driver
fails to link, since some pci functions are not available.  Fix this
behaviour to be able to compile this driver on machines with no PCI bus
(but with ISA bus support).

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/char/Kconfig

@@ -312,7 +312,7 @@ config SPECIALIX_RTSCTS
 
 config SX
 	tristate "Specialix SX (and SI) card support"
-	depends on SERIAL_NONSTANDARD
+	depends on SERIAL_NONSTANDARD && (PCI || EISA || ISA)
 	help
 	  This is a driver for the SX and SI multiport serial cards.
 	  Please read the file <file:Documentation/sx.txt> for details.

drivers/char/sx.c

@@ -2498,8 +2498,10 @@ static void __devexit sx_remove_card(struct sx_board *board,
 		/* It is safe/allowed to del_timer a non-active timer */
 		del_timer(&board->timer);
 		if (pdev) {
+#ifdef CONFIG_PCI
 			pci_iounmap(pdev, board->base);
 			pci_release_region(pdev, IS_CF_BOARD(board) ? 3 : 2);
+#endif
 		} else {
 			iounmap(board->base);
 			release_region(board->hw_base, board->hw_len);
@@ -2601,6 +2603,7 @@ static struct eisa_driver sx_eisadriver = {
 
 #endif
 
+#ifdef CONFIG_PCI
  /******************************************************** 
  * Setting bit 17 in the CNTRL register of the PLX 9050  * 
  * chip forces a retry on writes while a read is pending.*
@@ -2632,10 +2635,12 @@ static void __devinit fix_sx_pci(struct pci_dev *pdev, struct sx_board *board)
 	}
 	iounmap(rebase);
 }
+#endif
 
 static int __devinit sx_pci_probe(struct pci_dev *pdev,
 				  const struct pci_device_id *ent)
 {
+#ifdef CONFIG_PCI
 	struct sx_board *board;
 	unsigned int i, reg;
 	int retval = -EIO;
@@ -2700,6 +2705,9 @@ static int __devinit sx_pci_probe(struct pci_dev *pdev,
 	board->flags &= ~SX_BOARD_PRESENT;
 err:
 	return retval;
+#else
+	return -ENODEV;
+#endif
 }
 
 static void __devexit sx_pci_remove(struct pci_dev *pdev)