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Subject[PATCH 5.15 666/667] md: fix double free of io_acct_set bioset
Date
From: Xiao Ni <xni@redhat.com>

commit 42b805af102471f53e3c7867b8c2b502ea4eef7e upstream.

Now io_acct_set is alloc and free in personality. Remove the codes that
free io_acct_set in md_free and md_stop.

Fixes: 0c031fd37f69 (md: Move alloc/free acct bioset in to personality)
Signed-off-by: Xiao Ni <xni@redhat.com>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/md/md.c | 4 ----
1 file changed, 4 deletions(-)

--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5588,8 +5588,6 @@ static void md_free(struct kobject *ko)

bioset_exit(&mddev->bio_set);
bioset_exit(&mddev->sync_set);
- if (mddev->level != 1 && mddev->level != 10)
- bioset_exit(&mddev->io_acct_set);
kfree(mddev);
}

@@ -6277,8 +6275,6 @@ void md_stop(struct mddev *mddev)
__md_stop(mddev);
bioset_exit(&mddev->bio_set);
bioset_exit(&mddev->sync_set);
- if (mddev->level != 1 && mddev->level != 10)
- bioset_exit(&mddev->io_acct_set);
}

EXPORT_SYMBOL_GPL(md_stop);

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