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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-02-01 23:09:36 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-02-01 23:09:36 +0100 |
| commit | 9d501529b688dada3fd90d91b1517e48d5ac3e05 (patch) | |
| tree | 455d4f52979dd11abc1ef6dbd3c01128e03118d1 /drivers/ide/ide-probe.c | |
| parent | ide: use ide_remove_port_from_hwgroup in init_irq() (diff) | |
| download | linux-9d501529b688dada3fd90d91b1517e48d5ac3e05.tar.xz linux-9d501529b688dada3fd90d91b1517e48d5ac3e05.zip | |
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: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-probe.c')
| -rw-r--r-- | drivers/ide/ide-probe.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 3acb1b692f8c..2395498fbc7b 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -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++) { |