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UBI: fix kmem_cache_free on error patch

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'kmem_cache_free()' oopeses if NULL is passed, and there is
one error-path place where UBI may call it with NULL object.
This problem was pointed to by Adrian Hunter.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
This commit is contained in:
Artem Bityutskiy 2009-06-08 19:28:18 +03:00
parent 52b605d107
commit 21d08bbcb1
1 changed files with 2 additions and 1 deletions
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3
drivers/mtd/ubi/wl.c
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@ -826,7 +826,8 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,
err = schedule_erase(ubi, e1, 0);
if (err) {
kmem_cache_free(ubi_wl_entry_slab, e1);
kmem_cache_free(ubi_wl_entry_slab, e2);
if (e2)
kmem_cache_free(ubi_wl_entry_slab, e2);
goto out_ro;
}