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-rw-r--r--src/gb/gprs_ns_vty.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/gb/gprs_ns_vty.c b/src/gb/gprs_ns_vty.c
index 5a951dca..ee305ba5 100644
--- a/src/gb/gprs_ns_vty.c
+++ b/src/gb/gprs_ns_vty.c
@@ -573,8 +573,16 @@ DEFUN(logging_fltr_nsvc,
int gprs_ns_vty_init(struct gprs_ns_inst *nsi)
{
+ static bool vty_elements_installed = false;
+
vty_nsi = nsi;
+ /* Regression test code may call this function repeatedly, so make sure
+ * that VTY elements are not duplicated, which would assert. */
+ if (vty_elements_installed)
+ return 0;
+ vty_elements_installed = true;
+
install_element_ve(&show_ns_cmd);
install_element_ve(&show_ns_stats_cmd);
install_element_ve(&show_nse_cmd);