[PATCH] md: Fix the 'failed' count for version-0 superblocks

We are counting failed devices twice, once of the device that is failed, and
once for the hole that has been left in the array.  Remove the former so
'failed' matches 'missing'.  Storing these counts in the superblock is a bit
silly anyway....
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/md/md.c

@@ -895,10 +895,9 @@ static void super_90_sync(mddev_t *mddev, mdk_rdev_t *rdev)
 			d->raid_disk = rdev2->raid_disk;
 		else
 			d->raid_disk = rdev2->desc_nr; /* compatibility */
-		if (test_bit(Faulty, &rdev2->flags)) {
+		if (test_bit(Faulty, &rdev2->flags))
 			d->state = (1<<MD_DISK_FAULTY);
-			failed++;
-		} else if (test_bit(In_sync, &rdev2->flags)) {
+		else if (test_bit(In_sync, &rdev2->flags)) {
 			d->state = (1<<MD_DISK_ACTIVE);
 			d->state |= (1<<MD_DISK_SYNC);
 			active++;