[libbluray-devel] "document" tag checksum calculation

[Petri Hintukainen]

libudfread | branch: master | Petri Hintukainen <phintuka at gmail.com> | Mon Jun  5 13:01:26 2017 +0300| [263256461d212f35c2246d6c0736d301b38c834b] | committer: Petri Hintukainen

"document" tag checksum calculation

> http://git.videolan.org/gitweb.cgi/libudfread.git/?a=commit;h=263256461d212f35c2246d6c0736d301b38c834b
---

 src/ecma167.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ecma167.c b/src/ecma167.c
index b197a1f..2760d4d 100644
--- a/src/ecma167.c
+++ b/src/ecma167.c
@@ -85,10 +85,10 @@ enum tag_identifier decode_descriptor_tag(const uint8_t *buf)
 
   /* calculate tag checksum */
   for (i = 0; i < 4; i++) {
-      checksum += buf[i];
+      checksum = (uint8_t)(checksum + buf[i]);
   }
   for (i = 5; i < 16; i++) {
-      checksum += buf[i];
+      checksum = (uint8_t)(checksum + buf[i]);
   }
 
   if (checksum != buf[4]) {