Protected all concurrent accesses to sources and destinations of instructions.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/analysis/disass/rank.c b/src/analysis/disass/rank.c
index 9b9f29e..85d9e66 100644
--- a/src/analysis/disass/rank.c
+++ b/src/analysis/disass/rank.c
@@ -73,6 +73,8 @@ static bool rank_flow_block(GFlowBlock *block, BlockVisitOrder order, const GIns
     links = g_instr_block_get_links_block(G_INSTR_BLOCK(block));
 
     g_flow_block_get_boundary(block, NULL, &last);
+
+    g_arch_instruction_rlock_dest(last);
     dcount = g_arch_instruction_get_destinations(last, &dests, &types, NULL);
 
     for (i = 0; i < dcount; i++)
@@ -170,6 +172,8 @@ static bool rank_flow_block(GFlowBlock *block, BlockVisitOrder order, const GIns
 
     }
 
+    g_arch_instruction_runlock_dest(last);
+
     return true;
 
 }