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[PATCH] pmac IDE: don't release empty interfaces
From: Thibaut VARENE <T-Bone@parisc-linux.org> Cleaning up the hwif without knowing its previous state in pmac.c is a big and potentially dangerous job, and there seems to be no generic code interface that would provide either a way to properly release an hwif or to clean it up. Fixes OOPS for empty PMAC interface and add-on PCI controller. Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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@ -1401,20 +1401,6 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
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/* We probe the hwif now */
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probe_hwif_init(hwif);
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/* The code IDE code will have set hwif->present if we have devices attached,
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* if we don't, the discard the interface except if we are on a media bay slot
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*/
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if (!hwif->present && !pmif->mediabay) {
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printk(KERN_INFO "ide%d: Bus empty, interface released.\n",
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hwif->index);
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default_hwif_iops(hwif);
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for (i = IDE_DATA_OFFSET; i <= IDE_CONTROL_OFFSET; ++i)
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hwif->io_ports[i] = 0;
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hwif->chipset = ide_unknown;
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hwif->noprobe = 1;
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return -ENODEV;
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}
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return 0;
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}
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