nfsd: fix rsi_cache reference count leak

For some reason we haven't been put()'ing the reference count here.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index aa790bb4f7a155de4db523290e6d6480970d7f6a..688cc31040f3e50b06c57c78e4caefa7ffba5386 100644 (file)
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -975,6 +975,7 @@ static int svcauth_gss_handle_init(struct svc_rqst *rqstp,
        struct kvec *resv = &rqstp->rq_res.head[0];
        struct xdr_netobj tmpobj;
        struct rsi *rsip, rsikey;
+       int ret;
 
        /* Read the verifier; should be NULL: */
        *authp = rpc_autherr_badverf;
@@ -1014,23 +1015,27 @@ static int svcauth_gss_handle_init(struct svc_rqst *rqstp,
                /* No upcall result: */
                return SVC_DROP;
        case 0:
+               ret = SVC_DROP;
                /* Got an answer to the upcall; use it: */
                if (gss_write_init_verf(rqstp, rsip))
-                       return SVC_DROP;
+                       goto out;
                if (resv->iov_len + 4 > PAGE_SIZE)
-                       return SVC_DROP;
+                       goto out;
                svc_putnl(resv, RPC_SUCCESS);
                if (svc_safe_putnetobj(resv, &rsip->out_handle))
-                       return SVC_DROP;
+                       goto out;
                if (resv->iov_len + 3 * 4 > PAGE_SIZE)
-                       return SVC_DROP;
+                       goto out;
                svc_putnl(resv, rsip->major_status);
                svc_putnl(resv, rsip->minor_status);
                svc_putnl(resv, GSS_SEQ_WIN);
                if (svc_safe_putnetobj(resv, &rsip->out_token))
-                       return SVC_DROP;
+                       goto out;
        }
-       return SVC_COMPLETE;
+       ret = SVC_COMPLETE;
+out:
+       cache_put(&rsip->h, &rsi_cache);
+       return ret;
 }
 
 /*