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-rw-r--r--Zend/zend_generators.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/Zend/zend_generators.c b/Zend/zend_generators.c
index 971d4e7bc8..a8c589964b 100644
--- a/Zend/zend_generators.c
+++ b/Zend/zend_generators.c
@@ -236,7 +236,9 @@ ZEND_API void zend_generator_create_zval(zend_execute_data *call, zend_op_array
zend_op_array *op_array_copy = (zend_op_array*)emalloc(sizeof(zend_op_array));
*op_array_copy = *op_array;
- (*op_array->refcount)++;
+ if (op_array->refcount) {
+ (*op_array->refcount)++;
+ }
op_array->run_time_cache = NULL;
if (op_array->static_variables) {
ALLOC_HASHTABLE(op_array_copy->static_variables);