Commit b54eebd6 authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik

libata: don't check n_sectors during revalidation if zero

If the initial configuration fails early, n_sectors is left at zero.
Checking against it during revalidation makes retried configuration
fail due to n_sectors mismatch.  Ignore zero n_sectors during
revalidation.
Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 9edbdbea
......@@ -3700,7 +3700,8 @@ int ata_dev_revalidate(struct ata_device *dev, unsigned int readid_flags)
goto fail;
/* verify n_sectors hasn't changed */
if (dev->class == ATA_DEV_ATA && dev->n_sectors != n_sectors) {
if (dev->class == ATA_DEV_ATA && n_sectors &&
dev->n_sectors != n_sectors) {
ata_dev_printk(dev, KERN_INFO, "n_sectors mismatch "
"%llu != %llu\n",
(unsigned long long)n_sectors,
......
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