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authorTrond Myklebust <Trond.Myklebust@netapp.com>2013-08-07 20:38:07 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2013-08-07 20:47:26 -0400
commitb72888cb0ba63b2dfc6c8d3cd78a7fea584bebc6 (patch)
treeca1ea405e0d79734771a2a7861b7f363568ac56e /fs
parenteddffa40841c0249678ee5551839e369baa97314 (diff)
downloadlinux-b72888cb0ba63b2dfc6c8d3cd78a7fea584bebc6.tar.bz2
NFSv4: Fix up nfs4_proc_lookup_mountpoint
Currently, we do not check the return value of client = rpc_clone_client(), nor do we shut down the resulting cloned rpc_clnt in the case where a NFS4ERR_WRONGSEC has caused nfs4_proc_lookup_common() to replace the original value of 'client' (causing a memory leak). Fix both issues and simplify the code by moving the call to rpc_clone_client() until after nfs4_proc_lookup_common() has done its business. Reported-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/nfs4proc.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index cf11799297c4..108a774095f7 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -3071,15 +3071,13 @@ struct rpc_clnt *
nfs4_proc_lookup_mountpoint(struct inode *dir, struct qstr *name,
struct nfs_fh *fhandle, struct nfs_fattr *fattr)
{
+ struct rpc_clnt *client = NFS_CLIENT(dir);
int status;
- struct rpc_clnt *client = rpc_clone_client(NFS_CLIENT(dir));
status = nfs4_proc_lookup_common(&client, dir, name, fhandle, fattr, NULL);
- if (status < 0) {
- rpc_shutdown_client(client);
+ if (status < 0)
return ERR_PTR(status);
- }
- return client;
+ return (client == NFS_CLIENT(dir)) ? rpc_clone_client(client) : client;
}
static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry)