[PATCH 4/5] ide-generic: use ide_find_port()

[Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>]

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/ide-generic.c |   17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

Index: b/drivers/ide/ide-generic.c
===================================================================
--- a/drivers/ide/ide-generic.c
+++ b/drivers/ide/ide-generic.c
@@ -90,18 +90,27 @@ static int __init ide_generic_init(void)
 	int i;
 
 	for (i = 0; i < MAX_HWIFS; i++) {
-		ide_hwif_t *hwif = &ide_hwifs[i];
+		ide_hwif_t *hwif;
 		unsigned long io_addr = ide_default_io_base(i);
 		hw_regs_t hw;
 
-		if (hwif->chipset == ide_unknown && io_addr) {
-			u8 oldnoprobe = hwif->noprobe;
+		if (io_addr) {
+			u8 oldnoprobe;
+
+			/*
+			 * Skip probing if the corresponding
+			 * slot entry is already occupied.
+			 */
+			hwif = ide_find_port();
+			if (hwif == NULL || hwif->index != i)
+				continue;
 
 			memset(&hw, 0, sizeof(hw));
 			ide_std_init_ports(&hw, io_addr, io_addr + 0x206);
 			hw.irq = ide_default_irq(io_addr);
-			ide_init_port_hw(hwif, &hw);
 
+			oldnoprobe = hwif->noprobe;
+			ide_init_port_hw(hwif, &hw);
 			hwif->noprobe = oldnoprobe;
 
 			idx[i] = i;