NFS: nfs41_walk_client_list(): re-lock before iterating
Sparse identified an execution path in nfs41_walk_client_list()
where the nfs_client_lock is not re-acquired before taking the next
loop iteration.
fs/nfs/nfs4client.c:437:9: sparse: context imbalance in
'nfs41_walk_client_list' - different lock contexts for basic block
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 8466e60..6bacfde 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -450,6 +450,7 @@
error = nfs_wait_client_init_complete(pos);
if (error < 0) {
nfs_put_client(pos);
+ spin_lock(&nn->nfs_client_lock);
continue;
}