cmd640: use ide_find_port()
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c
index 3303ffb..fed9341 100644
--- a/drivers/ide/pci/cmd640.c
+++ b/drivers/ide/pci/cmd640.c
@@ -744,18 +744,19 @@
printk(KERN_INFO "cmd640: buggy cmd640%c interface on %s, config=0x%02x"
"\n", 'a' + cmd640_chip_version - 1, bus_type, cfr);
- cmd_hwif0 = &ide_hwifs[0];
- cmd_hwif1 = &ide_hwifs[1];
+ cmd_hwif0 = ide_find_port();
/*
* Initialize data for primary port
*/
- ide_init_port_hw(cmd_hwif0, &hw[0]);
+ if (cmd_hwif0) {
+ ide_init_port_hw(cmd_hwif0, &hw[0]);
#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
- cmd_hwif0->set_pio_mode = &cmd640_set_pio_mode;
+ cmd_hwif0->set_pio_mode = &cmd640_set_pio_mode;
#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */
- idx[0] = cmd_hwif0->index;
+ idx[0] = cmd_hwif0->index;
+ }
/*
* Ensure compatibility by always using the slowest timings
@@ -767,10 +768,13 @@
put_cmd640_reg(CMDTIM, 0);
put_cmd640_reg(BRST, 0x40);
+ cmd_hwif1 = ide_find_port();
+
/*
* Try to enable the secondary interface, if not already enabled
*/
- if (cmd_hwif1->drives[0].noprobe && cmd_hwif1->drives[1].noprobe) {
+ if (cmd_hwif1 &&
+ cmd_hwif1->drives[0].noprobe && cmd_hwif1->drives[1].noprobe) {
port2 = "not probed";
} else {
b = get_cmd640_reg(CNTRL);
@@ -801,7 +805,7 @@
/*
* Initialize data for secondary cmd640 port, if enabled
*/
- if (second_port_cmd640) {
+ if (second_port_cmd640 && cmd_hwif1) {
ide_init_port_hw(cmd_hwif1, &hw[1]);
#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
cmd_hwif1->set_pio_mode = &cmd640_set_pio_mode;
@@ -809,7 +813,7 @@
idx[1] = cmd_hwif1->index;
}
- printk(KERN_INFO "%s: %sserialized, secondary interface %s\n", cmd_hwif1->name,
+ printk(KERN_INFO "cmd640: %sserialized, secondary interface %s\n",
second_port_cmd640 ? "" : "not ", port2);
/*
@@ -819,10 +823,15 @@
for (index = 0; index < (2 + (second_port_cmd640 << 1)); index++) {
ide_drive_t *drive;
- if (index > 1)
+ if (index > 1) {
+ if (cmd_hwif1 == NULL)
+ continue;
drive = &cmd_hwif1->drives[index & 1];
- else
+ } else {
+ if (cmd_hwif0 == NULL)
+ continue;
drive = &cmd_hwif0->drives[index & 1];
+ }
#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
if (drive->autotune || ((index > 1) && second_port_toggled)) {