[PATCH] f2fs: fix memory leak when init f2fs filesystem fail

[Zhao Hongjiang <zhaohongjiang@huawei.com>]

When any of the caches create fails in init_f2fs_fs(), the other caches which are
create successful should be free.

Signed-off-by: Zhao Hongjiang <zhaohongjiang@huawei.com>
---
 fs/f2fs/super.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 75c7dc3..d9ad1ba 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -841,17 +841,26 @@ static int __init init_f2fs_fs(void)
 		goto fail;
 	err = create_node_manager_caches();
 	if (err)
-		goto fail;
+		goto free_inodecache;
 	err = create_gc_caches();
 	if (err)
-		goto fail;
+		goto free_node_manager_caches;
 	err = create_checkpoint_caches();
 	if (err)
-		goto fail;
+		goto free_gc_caches;
 	err = register_filesystem(&f2fs_fs_type);
 	if (err)
-		goto fail;
+		goto free_checkpoint_caches;
 	f2fs_create_root_stats();
+
+free_checkpoint_caches:
+	destroy_checkpoint_caches();
+free_gc_caches:
+	destroy_gc_caches();
+free_node_manager_caches:
+	destroy_node_manager_caches();
+free_inodecache:
+	destroy_inodecache();
 fail:
 	return err;
 }
-- 
1.8.2.2


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