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dm: fix memory leak in dm_create_persistent() when starting metadata update thread fails

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If, in dm_create_persistent(), the call to create_singlethread_workqueue()
fails then we'll return without freeing the memory allocated to 'ps', thus
leaking sizeof(struct pstore) bytes.  This patch fixes the leak.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com
Acked-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jesper Juhl 2007-07-18 00:49:08 -07:00 committed by Linus Torvalds
parent cb32da0416
commit 851a8a7fd4
1 changed files with 1 additions and 0 deletions
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drivers/md/dm-exception-store.c
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@ -623,6 +623,7 @@ int dm_create_persistent(struct exception_store *store)
ps->metadata_wq = create_singlethread_workqueue("ksnaphd");
if (!ps->metadata_wq) {
kfree(ps);
DMERR("couldn't start header metadata update thread");
return -ENOMEM;
}