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UBI: fix some use after free bugs 

Move the kmem_cache_free() calls down a couple lines.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
hifive-unleashed-5.1
Dan Carpenter 2014-01-29 16:17:57 +03:00 committed by Artem Bityutskiy
parent 38dbfb59d1
commit 5547fec74a
1 changed files with 4 additions and 4 deletions
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8
drivers/mtd/ubi/fastmap.c
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@ -463,8 +463,8 @@ static int scan_pool(struct ubi_device *ubi, struct ubi_attach_info *ai,
}
}
if (found_orphan) {
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
list_del(&tmp_aeb->u.list);
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
}
new_aeb = kmem_cache_alloc(ai->aeb_slab_cache,
@ -846,16 +846,16 @@ fail_bad:
ret = UBI_BAD_FASTMAP;
fail:
list_for_each_entry_safe(tmp_aeb, _tmp_aeb, &used, u.list) {
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
list_del(&tmp_aeb->u.list);
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
}
list_for_each_entry_safe(tmp_aeb, _tmp_aeb, &eba_orphans, u.list) {
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
list_del(&tmp_aeb->u.list);
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
}
list_for_each_entry_safe(tmp_aeb, _tmp_aeb, &free, u.list) {
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
list_del(&tmp_aeb->u.list);
kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
}
return ret;