NeilBrown: super-intel: fix test on failed_disk_num.

[Martin F. Krafft]

Module: mdadm
Branch: master
Commit: 4291d691b66f65695b5b4be22b80fd00da73b544
URL:    http://git.debian.org/?p=pkg-mdadm/mdadm.git;a=commit;h=4291d691b66f65695b5b4be22b80fd00da73b544

Author: NeilBrown <neilb at suse.de>
Date:   Thu Jun  4 12:29:21 2009 +1000

super-intel: fix test on failed_disk_num.

We sometimes set failed_disk_num to ~0.
However we cannot test for equality with that as  failed_disk_num
is 8bit and ~0 is probably 32bit with lots of 1's.
So test if ~failed_disk_num is 0 instead.

Reported-By: "Mr. James W. Laferriere" <babydr at baby-dragons.com>
Signed-off-by: NeilBrown <neilb at suse.de>

---

 super-intel.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/super-intel.c b/super-intel.c
index 73fe5fa..7e2a086 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -3629,7 +3629,7 @@ static int mark_failure(struct imsm_dev *dev, struct imsm_disk *disk, int idx)
 
 	disk->status |= FAILED_DISK;
 	set_imsm_ord_tbl_ent(map, slot, idx | IMSM_ORD_REBUILD);
-	if (map->failed_disk_num == ~0)
+	if (~map->failed_disk_num == 0)
 		map->failed_disk_num = slot;
 	return 1;
 }