From 6f65985e2636c0b170eade6a72d216632f065e26 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 13 Sep 2015 14:15:05 +0200 Subject: 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/) // @@ expression x; @@ -if (x != NULL) \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x); // Signed-off-by: Julia Lawall Signed-off-by: Mike Snitzer --- drivers/md/dm-cache-target.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/md/dm-cache-target.c') diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c index dd90d1236f4a..2fd4c8296144 100644 --- a/drivers/md/dm-cache-target.c +++ b/drivers/md/dm-cache-target.c @@ -2309,8 +2309,7 @@ static void destroy(struct cache *cache) { unsigned i; - if (cache->migration_pool) - mempool_destroy(cache->migration_pool); + mempool_destroy(cache->migration_pool); if (cache->all_io_ds) dm_deferred_set_destroy(cache->all_io_ds); -- cgit v1.2.3