Fix prev pointer of emph->first_child

2 files changed, 6 insertions, 0 deletions

diff --git a/src/inlines.c b/src/inlines.c
index e08b757..5a8024d 100644
--- a/src/inlines.c
+++ b/src/inlines.c
@@ -431,6 +431,7 @@ static void process_emphasis(subject *subj, delimiter_stack *stack_bottom)
 
 				// fix tree structure
 				tmp = emph->first_child;
+				tmp->prev = NULL;
 				while (tmp->next != NULL && tmp->next != closer->first_inline) {
 					tmp->parent = emph;
 					tmp = tmp->next;
diff --git a/src/node.c b/src/node.c
index 4054881..fd92fdc 100644
--- a/src/node.c
+++ b/src/node.c
@@ -607,6 +607,11 @@ cmark_node_check(cmark_node *node, FILE *out)
 	cur = node;
 	while (true) {
 		if (cur->first_child) {
+			if (cur->first_child->prev != NULL) {
+				S_print_error(out, cur->first_child, "prev");
+				cur->first_child->prev = NULL;
+				++errors;
+			}
 			if (cur->first_child->parent != cur) {
 				S_print_error(out, cur->first_child, "parent");
 				cur->first_child->parent = cur;