nfsd4: initialize cb_per_client
Otherwise a callback that is aborted before it runs will result in a
list_del on an uninitialized list head.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index f1d9dd4..209e186 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -866,6 +866,7 @@
cb->cb_ops = &nfsd4_cb_recall_ops;
dp->dl_retries = 1;
+ INIT_LIST_HEAD(&cb->cb_per_client);
cb->cb_done = true;
run_nfsd4_cb(&dp->dl_recall);