Fix some cppcheck / scan-build warnings

These were found by the cppcheck and scan-build static analyzers. Most
of these aren't interesting (the 2 previous commits fix some interesting
cases found by these analyzers), and they don't nearly fix all warnings.
(Most of the unfixed warnings are spam, things MPlayer never cared
about, or false positives.)

1 files changed, 2 insertions, 0 deletions

diff --git a/demux/demux_mkv.c b/demux/demux_mkv.c
index 86c17ea9a8..06db8302b1 100644
--- a/demux/demux_mkv.c
+++ b/demux/demux_mkv.c
@@ -1824,6 +1824,8 @@ static int demux_mkv_read_block_lacing(bstr *buffer, int *laces,
             }
             lace_size[i] = buffer->len - total;
             break;
+
+        default: abort();
         }
     }