Protected all concurrent accesses to sources and destinations of instructions.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/analysis/disass/loop.c b/src/analysis/disass/loop.c
index e7dbbd7..89a4bc9 100644
--- a/src/analysis/disass/loop.c
+++ b/src/analysis/disass/loop.c
@@ -64,8 +64,8 @@ static void detect_back_edges(dragon_node *nodes, size_t count)
 
         get_dragon_node_bounding_instructions(node, NULL, &last);
 
+        g_arch_instruction_wlock_dest(last);
         dcount = g_arch_instruction_get_destinations(last, &dests, &types, NULL);
-        if (dcount == 0) continue;
 
         for (i = 0; i < dcount; i++)
             switch (types[i])
@@ -102,6 +102,8 @@ static void detect_back_edges(dragon_node *nodes, size_t count)
 
             }
 
+        g_arch_instruction_wunlock_dest(last);
+
     }
 
 }