SUNRPC: Fix a memory leak in the auth credcache code

The leak only affects the RPCSEC_GSS caches, since they are the only ones
that are dynamically allocated...
Rename the existing rpcauth_free_credcache() to rpcauth_clear_credcache()
in order to better describe its role, then add a new function
rpcauth_destroy_credcache() that actually frees the cache in addition to
clearing it out.

Also move the call to destroy the credcache in gss_destroy() to come before
the rpc upcall pipe is unlinked.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index b99b11b11461..3e19e7af6799 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -57,7 +57,7 @@ EXPORT_SYMBOL(rpcauth_unregister);
 EXPORT_SYMBOL(rpcauth_create);
 EXPORT_SYMBOL(rpcauth_lookupcred);
 EXPORT_SYMBOL(rpcauth_lookup_credcache);
-EXPORT_SYMBOL(rpcauth_free_credcache);
+EXPORT_SYMBOL(rpcauth_destroy_credcache);
 EXPORT_SYMBOL(rpcauth_init_credcache);
 EXPORT_SYMBOL(put_rpccred);