We reference cl_hostname in many places. Add a check to make
sure it exists.
Signed-off-by: Peng Tao <tao.peng@xxxxxxxxxxxxxxx>
---
fs/nfs/client.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 1d09289..b213ee8 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -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);
--
1.9.1
--
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