X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Foutput%2Foutput-item.c;h=1b7b4b7d1c06c90714fce02a49ec45e6f70680e5;hb=bd5e8f74de87b9061ff62615f48fb378e844e87d;hp=c39e8cd32655843180078a341fd0df5971a0d8f3;hpb=29917c4f5908454803e663d2ad78bca4bc35e805;p=pspp

diff --git a/src/output/output-item.c b/src/output/output-item.c
index c39e8cd326..1b7b4b7d1c 100644
--- a/src/output/output-item.c
+++ b/src/output/output-item.c
@@ -45,6 +45,7 @@ struct output_item *
 output_item_ref (const struct output_item *item_)
 {
   struct output_item *item = CONST_CAST (struct output_item *, item_);
+  assert (item->ref_cnt > 0);
   item->ref_cnt++;
   return item;
 }
@@ -305,7 +306,7 @@ image_item_create (cairo_surface_t *image)
 struct output_item *
 message_item_create (const struct msg *msg)
 {
-  struct output_item *item = xmalloc (sizeof *msg);
+  struct output_item *item = xmalloc (sizeof *item);
   *item = (struct output_item) {
     OUTPUT_ITEM_INITIALIZER (OUTPUT_ITEM_MESSAGE),
     .message = msg_dup (msg),