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-rw-r--r--src/eval.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/eval.c b/src/eval.c
index 840e1e8f8..5c584dead 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -2951,7 +2951,7 @@ set_var_lval(lp, endp, rettv, copy, op)
/*
* Check whether any of the list items is locked
*/
- for (ri = rettv->vval.v_list->lv_first; ri != NULL; )
+ for (ri = rettv->vval.v_list->lv_first; ri != NULL && ll_li != NULL; )
{
if (tv_check_lock(ll_li->li_tv.v_lock, lp->ll_name))
return;