From: Bartlomiej Zolnierkiewicz Date: Fri, 1 Feb 2008 22:09:36 +0000 (+0100) Subject: ide: make probe_hwif() return an error value X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9d501529b688dada3fd90d91b1517e48d5ac3e05;p=linux-beck.git 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 --- diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c index 495e3878e42e..16b1f6e12781 100644 --- a/drivers/ide/ide-iops.c +++ b/drivers/ide/ide-iops.c @@ -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) { 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++) { diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c index d50caa082d50..fc9eee9ccac3 100644 --- a/drivers/ide/pci/ns87415.c +++ b/drivers/ide/pci/ns87415.c @@ -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]);