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libata: fix n_sectors failure handling during revalidation 

If revalidation fails because device has different n_sectors after
configuration the original n_sectors should be restored before failing
revalidation.  Without this fix, n_sectors difference will incorrectly
and silently pass revalidation when revalidation is retried.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2007-08-16 03:02:22 +09:00 committed by Jeff Garzik
parent b377fd3982
commit 8270bec400
1 changed files with 4 additions and 0 deletions
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4
drivers/ata/libata-core.c
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@ -3705,6 +3705,10 @@ int ata_dev_revalidate(struct ata_device *dev, unsigned int readid_flags)
"%llu != %llu\n",
(unsigned long long)n_sectors,
(unsigned long long)dev->n_sectors);
/* restore original n_sectors */
dev->n_sectors = n_sectors;
rc = -ENODEV;
goto fail;
}