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| 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-bufio.c | |
| parent | 71cdb6978a80f9f6c51bef0622388c1414c2fe32 (diff) | |
| download | linux-stable-6f65985e2636c0b170eade6a72d216632f065e26.tar.gz linux-stable-6f65985e2636c0b170eade6a72d216632f065e26.tar.bz2 linux-stable-6f65985e2636c0b170eade6a72d216632f065e26.zip | |
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-bufio.c')
| -rw-r--r-- | drivers/md/dm-bufio.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c index 83cc52eaf56d..e1547d0dadfd 100644 --- a/drivers/md/dm-bufio.c +++ b/drivers/md/dm-bufio.c @@ -1861,12 +1861,8 @@ static void __exit dm_bufio_exit(void) cancel_delayed_work_sync(&dm_bufio_work); destroy_workqueue(dm_bufio_wq); - for (i = 0; i < ARRAY_SIZE(dm_bufio_caches); i++) { - struct kmem_cache *kc = dm_bufio_caches[i]; - - if (kc) - kmem_cache_destroy(kc); - } + for (i = 0; i < ARRAY_SIZE(dm_bufio_caches); i++) + kmem_cache_destroy(dm_bufio_caches[i]); for (i = 0; i < ARRAY_SIZE(dm_bufio_cache_names); i++) kfree(dm_bufio_cache_names[i]); |