All *_free(...) functions should accept a NULL argument

1 files changed, 2 insertions, 0 deletions

diff --git a/text.c b/text.c
index 56332db..7338415 100644
--- a/text.c
+++ b/text.c
@@ -457,6 +457,8 @@ static Change *change_alloc(Text *txt, size_t pos) {
 }
 
 static void change_free(Change *c) {
+	if (!c)
+		return;
 	/* only free the new part of the span, the old one is still in use */
 	piece_free(c->new.start);
 	if (c->new.start != c->new.end)