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-rw-r--r--Modules/cPickle.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Modules/cPickle.c b/Modules/cPickle.c
index 614ff06..a661c66 100644
--- a/Modules/cPickle.c
+++ b/Modules/cPickle.c
@@ -3295,7 +3295,7 @@ load_mark(Unpicklerobject *self) {
if ((self->num_marks + 1) >= self->marks_size) {
s=self->marks_size+20;
if (s <= self->num_marks) s=self->num_marks + 1;
- if (self->marks)
+ if (self->marks == NULL)
self->marks=(int *)malloc(s * sizeof(int));
else
self->marks=(int *)realloc(self->marks, s * sizeof(int));