hot_add_disk and hot_remove_disk check mddev->pers before proceeding.
set_disk_faulty should too.
Signed-off-by: Neil Brown <neilb@xxxxxxxxxxxxxxx>
### Diffstat output
./drivers/md/md.c | 3 +++
1 files changed, 3 insertions(+)
diff ./drivers/md/md.c~current~ ./drivers/md/md.c
--- ./drivers/md/md.c~current~ 2005-02-07 13:31:08.000000000 +1100
+++ ./drivers/md/md.c 2005-02-07 13:32:00.000000000 +1100
@@ -2489,6 +2489,9 @@ static int set_disk_faulty(mddev_t *mdde
{
mdk_rdev_t *rdev;
+ if (mddev->pers == NULL)
+ return -ENODEV;
+
rdev = find_rdev(mddev, dev);
if (!rdev)
return -ENODEV;
-
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