kstrdup() returns NULL when some internal memory errors happen, it is better to check the return value of it so to catch the memory error in time. Signed-off-by: Xiaoke Wang <xkernel.wang@xxxxxxxxxxx> --- fs/nfs/nfs4client.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c index af57332..89f13e0 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -1372,5 +1372,8 @@ int nfs4_update_server(struct nfs_server *server, const char *hostname, server->nfs_client->cl_hostname = kstrdup(hostname, GFP_KERNEL); nfs_server_insert_lists(server); + if (server->nfs_client->cl_hostname == NULL) + return -ENOMEM; + return nfs_probe_destination(server); } --
