提交 629acb6a 编写于 作者: J Jonathan Brassow 提交者: NeilBrown

MD: no integrity register if no gendisk

Don't attempt md_integrity_register if there is no gendisk struct available.

When MD arrays are built via device-mapper, the gendisk structure is not
available via mddev.
Signed-off-by: NJonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NNeilBrown <neilb@suse.de>
上级 59c5f46f
......@@ -1781,8 +1781,8 @@ int md_integrity_register(mddev_t *mddev)
if (list_empty(&mddev->disks))
return 0; /* nothing to do */
if (blk_get_integrity(mddev->gendisk))
return 0; /* already registered */
if (!mddev->gendisk || blk_get_integrity(mddev->gendisk))
return 0; /* shouldn't register, or already is */
list_for_each_entry(rdev, &mddev->disks, same_set) {
/* skip spares and non-functional disks */
if (test_bit(Faulty, &rdev->flags))
......
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