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authorWeston Andros Adamson <dros@netapp.com>2012-02-16 11:17:05 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-02-29 16:30:56 -0800
commit8ed3fe820fe9cf267d39d86cb76e4064cdf82da3 (patch)
tree79408a32cb203cfd57b7a2c21ee314426fcf3c23
parent0cea513e395f2a2d4dd650eeae8a1c08a7425296 (diff)
NFSv4: fix server_scope memory leak
commit abe9a6d57b4544ac208401f9c0a4262814db2be4 upstream. server_scope would never be freed if nfs4_check_cl_exchange_flags() returned non-zero Signed-off-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--fs/nfs/nfs4proc.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 2ee398a5d31..e52703080c6 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4876,8 +4876,10 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred)
clp->cl_rpcclient->cl_auth->au_flavor);
res.server_scope = kzalloc(sizeof(struct server_scope), GFP_KERNEL);
- if (unlikely(!res.server_scope))
- return -ENOMEM;
+ if (unlikely(!res.server_scope)) {
+ status = -ENOMEM;
+ goto out;
+ }
status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
if (!status)
@@ -4894,12 +4896,13 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred)
clp->server_scope = NULL;
}
- if (!clp->server_scope)
+ if (!clp->server_scope) {
clp->server_scope = res.server_scope;
- else
- kfree(res.server_scope);
+ goto out;
+ }
}
-
+ kfree(res.server_scope);
+out:
dprintk("<-- %s status= %d\n", __func__, status);
return status;
}