Commit 31434f49 authored by Peng Tao's avatar Peng Tao Committed by Trond Myklebust

nfs: check hostname in nfs_get_client

We reference cl_hostname in many places. Add a check to make
sure it exists.
Signed-off-by: default avatarPeng Tao <tao.peng@primarydata.com>
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
parent a363e32e
......@@ -482,8 +482,13 @@ nfs_get_client(const struct nfs_client_initdata *cl_init,
struct nfs_net *nn = net_generic(cl_init->net, nfs_net_id);
const struct nfs_rpc_ops *rpc_ops = cl_init->nfs_mod->rpc_ops;
if (cl_init->hostname == NULL) {
WARN_ON(1);
return NULL;
}
dprintk("--> nfs_get_client(%s,v%u)\n",
cl_init->hostname ?: "", rpc_ops->version);
cl_init->hostname, rpc_ops->version);
/* see if the client already exists */
do {
......@@ -510,7 +515,7 @@ nfs_get_client(const struct nfs_client_initdata *cl_init,
} while (!IS_ERR(new));
dprintk("<-- nfs_get_client() Failed to find %s (%ld)\n",
cl_init->hostname ?: "", PTR_ERR(new));
cl_init->hostname, PTR_ERR(new));
return new;
}
EXPORT_SYMBOL_GPL(nfs_get_client);
......
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