ctdb-cluster-mutex: Ensure that the configured command is not empty

[samba.git] / ctdb / server / ctdb_cluster_mutex.c

diff --git a/ctdb/server/ctdb_cluster_mutex.c b/ctdb/server/ctdb_cluster_mutex.c
index 2e3cb8112ad6cea6b22a356c59c8fe9a6c976552..719b5c14f7a10c5adc5967e7e8ba9559767e7ae8 100644 (file)
--- a/ctdb/server/ctdb_cluster_mutex.c
+++ b/ctdb/server/ctdb_cluster_mutex.c
@@ -176,6 +176,10 @@ static bool cluster_mutex_helper_args_cmd(TALLOC_CTX *mem_ctx,
                return false;
        }
        n = strv_count(strv);
+       if (n == 0) {
+               D_ERR("Mutex helper command is empty \"%s\"\n", argstring);
+               return false;
+       }
 
        /* Extra slot for NULL */
        args = talloc_array(mem_ctx, char *, n + 1);