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| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2015-09-13 15:15:05 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2015-11-01 02:06:00 +0300 |
| commit | 6f65985e2636c0b170eade6a72d216632f065e26 (patch) | |
| tree | 2f055892081b955b52b037db6628dd7e9c08b293 /drivers/md/dm-log-userspace-base.c | |
| parent | 71cdb6978a80f9f6c51bef0622388c1414c2fe32 (diff) | |
| download | linux-6f65985e2636c0b170eade6a72d216632f065e26.tar.xz | |
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-log-userspace-base.c')
| -rw-r--r-- | drivers/md/dm-log-userspace-base.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/md/dm-log-userspace-base.c b/drivers/md/dm-log-userspace-base.c index 058256d2eeea..53b7b06d0aa8 100644 --- a/drivers/md/dm-log-userspace-base.c +++ b/drivers/md/dm-log-userspace-base.c @@ -313,8 +313,7 @@ static int userspace_ctr(struct dm_dirty_log *log, struct dm_target *ti, out: kfree(devices_rdata); if (r) { - if (lc->flush_entry_pool) - mempool_destroy(lc->flush_entry_pool); + mempool_destroy(lc->flush_entry_pool); kfree(lc); kfree(ctr_str); } else { |