sunrpc: fix error path in module_init

register_rpc_pipefs() needs to clean up rpc_inode_cache
by kmem_cache_destroy() on register_filesystem() failure.

init_sunrpc() needs to unregister rpc_pipe_fs by unregister_rpc_pipefs()
when rpc_init_mempool() returns error.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Neil Brown <neilb@suse.de>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index 43ecf62f12ef..0d35bc796d00 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -146,9 +146,11 @@ init_sunrpc(void)
         int err = register_rpc_pipefs();
         if (err)
                 goto out;
-        err = rpc_init_mempool() != 0;
-        if (err)
+        err = rpc_init_mempool();
+        if (err) {
+                unregister_rpc_pipefs();
                 goto out;
+        }
 #ifdef RPC_DEBUG
         rpc_register_sysctl();
 #endif