nilfs2: drop null test before destroy functions

Remove unneeded NULL test.

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: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 8 deletions

diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index f47585bfeb01..c69455a543bc 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -1405,14 +1405,10 @@ static void nilfs_destroy_cachep(void)
          */
         rcu_barrier();
 
-        if (nilfs_inode_cachep)
-                kmem_cache_destroy(nilfs_inode_cachep);
-        if (nilfs_transaction_cachep)
-                kmem_cache_destroy(nilfs_transaction_cachep);
-        if (nilfs_segbuf_cachep)
-                kmem_cache_destroy(nilfs_segbuf_cachep);
-        if (nilfs_btree_path_cache)
-                kmem_cache_destroy(nilfs_btree_path_cache);
+        kmem_cache_destroy(nilfs_inode_cachep);
+        kmem_cache_destroy(nilfs_transaction_cachep);
+        kmem_cache_destroy(nilfs_segbuf_cachep);
+        kmem_cache_destroy(nilfs_btree_path_cache);
 }
 
 static int __init nilfs_init_cachep(void)