ide: make probe_hwif() return an error value

Make probe_hwif() return an error value.

While at it:

* Remove comment about MAX_DRIVES == 2 limitation (it is not special to
  probe_hwif(), it is a general assumption taken by a lot of IDE code).

* Rename probe_hwif() to ide_probe_port().
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent fbd13088
......@@ -1166,7 +1166,7 @@ EXPORT_SYMBOL(ide_do_reset);
/*
* ide_wait_not_busy() waits for the currently selected device on the hwif
* to report a non-busy status, see comments in probe_hwif().
* to report a non-busy status, see comments in ide_probe_port().
*/
int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout)
{
......
......@@ -738,24 +738,20 @@ void ide_undecoded_slave(ide_drive_t *drive1)
EXPORT_SYMBOL_GPL(ide_undecoded_slave);
/*
* This routine only knows how to look for drive units 0 and 1
* on an interface, so any setting of MAX_DRIVES > 2 won't work here.
*/
static void probe_hwif(ide_hwif_t *hwif)
static int ide_probe_port(ide_hwif_t *hwif)
{
unsigned long flags;
unsigned int irqd;
int unit;
if (hwif->noprobe)
return;
return -EACCES;
if ((hwif->chipset != ide_4drives || !hwif->mate || !hwif->mate->present) &&
(ide_hwif_request_regions(hwif))) {
printk(KERN_ERR "%s: ports already in use, skipping probe\n",
hwif->name);
return;
return -EBUSY;
}
/*
......@@ -804,7 +800,7 @@ static void probe_hwif(ide_hwif_t *hwif)
if (!hwif->present) {
ide_hwif_release_regions(hwif);
return;
return -ENODEV;
}
for (unit = 0; unit < MAX_DRIVES; unit++) {
......@@ -840,6 +836,8 @@ static void probe_hwif(ide_hwif_t *hwif)
else
drive->no_io_32bit = drive->id->dword_io ? 1 : 0;
}
return 0;
}
#if MAX_HWIFS > 1
......@@ -1311,7 +1309,7 @@ int ide_device_add_all(u8 *idx)
if (idx[i] == 0xff)
continue;
probe_hwif(&ide_hwifs[idx[i]]);
(void)ide_probe_port(&ide_hwifs[idx[i]]);
}
for (i = 0; i < MAX_HWIFS; i++) {
......
......@@ -229,8 +229,8 @@ static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif)
#ifdef __sparc_v9__
/*
* XXX: Reset the device, if we don't it will not respond
* to SELECT_DRIVE() properly during first probe_hwif().
* XXX: Reset the device, if we don't it will not respond to
* SELECT_DRIVE() properly during first ide_probe_port().
*/
timeout = 10000;
outb(12, hwif->io_ports[IDE_CONTROL_OFFSET]);
......
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