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| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2015-09-13 14:15:05 +0200 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2015-11-01 00:06:00 +0100 |
| commit | 6f65985e2636c0b170eade6a72d216632f065e26 (patch) | |
| tree | 2f055892081b955b52b037db6628dd7e9c08b293 /drivers/md/dm-region-hash.c | |
| parent | dm: add support for passing through persistent reservations (diff) | |
| download | linux-6f65985e2636c0b170eade6a72d216632f065e26.tar.xz linux-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-region-hash.c')
| -rw-r--r-- | drivers/md/dm-region-hash.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/md/dm-region-hash.c b/drivers/md/dm-region-hash.c index b929fd5f4984..f3d608bedffe 100644 --- a/drivers/md/dm-region-hash.c +++ b/drivers/md/dm-region-hash.c @@ -249,9 +249,7 @@ void dm_region_hash_destroy(struct dm_region_hash *rh) if (rh->log) dm_dirty_log_destroy(rh->log); - if (rh->region_pool) - mempool_destroy(rh->region_pool); - + mempool_destroy(rh->region_pool); vfree(rh->buckets); kfree(rh); } |