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md: fix uninitialized use of mddev->recovery_wait 

If an array was created with --assume-clean we will oops when trying to
set ->resync_max.

Fix this by initializing ->recovery_wait in mddev_find.

Cc: <stable@kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Dan Williams 2008-06-05 22:45:53 -07:00 committed by Linus Torvalds
parent e0a115e5aa
commit a6d8113a98
1 changed files with 1 additions and 1 deletions
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2
drivers/md/md.c
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@ -276,6 +276,7 @@ static mddev_t * mddev_find(dev_t unit)
atomic_set(&new->active, 1);
spin_lock_init(&new->write_lock);
init_waitqueue_head(&new->sb_wait);
init_waitqueue_head(&new->recovery_wait);
new->reshape_position = MaxSector;
new->resync_max = MaxSector;
new->level = LEVEL_NONE;
@ -5665,7 +5666,6 @@ void md_do_sync(mddev_t *mddev)
window/2,(unsigned long long) max_sectors/2);
atomic_set(&mddev->recovery_active, 0);
init_waitqueue_head(&mddev->recovery_wait);
last_check = 0;
if (j>2) {