diff options
| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2015-09-13 14:15:05 +0200 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2015-10-31 19:06:00 -0400 |
| commit | 6f65985e2636c0b170eade6a72d216632f065e26 (patch) | |
| tree | 2f055892081b955b52b037db6628dd7e9c08b293 /drivers/md/dm-crypt.c | |
| parent | 71cdb6978a80f9f6c51bef0622388c1414c2fe32 (diff) | |
dm: drop NULL test before kmem_cache_destroy() and mempool_destroy()
Remove DM's unneeded NULL tests before calling these destroy functions,
now that they check for NULL, thanks to these v4.3 commits:
3942d2991 ("mm/slab_common: allow NULL cache pointer in kmem_cache_destroy()")
4e3ca3e03 ("mm/mempool: allow NULL `pool' pointer in mempool_destroy()")
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@ expression x; @@
-if (x != NULL)
\(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-crypt.c')
| -rw-r--r-- | drivers/md/dm-crypt.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 4b3b6f8aff0c..3729b394432c 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -1544,10 +1544,8 @@ static void crypt_dtr(struct dm_target *ti) if (cc->bs) bioset_free(cc->bs); - if (cc->page_pool) - mempool_destroy(cc->page_pool); - if (cc->req_pool) - mempool_destroy(cc->req_pool); + mempool_destroy(cc->page_pool); + mempool_destroy(cc->req_pool); if (cc->iv_gen_ops && cc->iv_gen_ops->dtr) cc->iv_gen_ops->dtr(cc); |