lttv: don't crash on empty trace

git-svn-id: http://ltt.polymtl.ca/svn@2929 04897980-b3bd-0310-b5e0-8ef037075253

diff --git a/ltt/branches/poly/lttv/lttv/tracecontext.c b/ltt/branches/poly/lttv/lttv/tracecontext.c
index 5f08d78c8ba214297e7863dfd2fd82de95ffe7d7..f5b78b5cbfdd8d640fe6b91576b68d415c840010 100644 (file)
--- a/ltt/branches/poly/lttv/lttv/tracecontext.c
+++ b/ltt/branches/poly/lttv/lttv/tracecontext.c
@@ -1038,7 +1038,8 @@ void lttv_trace_hook_remove_all(GArray **th)
   for(i=0; i<(*th)->len; i++) {
     g_ptr_array_free(g_array_index(*th, LttvTraceHook, i).fields, TRUE);
   }
-  *th = g_array_remove_range(*th, 0, (*th)->len);
+  if((*th)->len)
+    *th = g_array_remove_range(*th, 0, (*th)->len);
 }
 
 LttvTracesetContextPosition *lttv_traceset_context_position_new(