model-checker : check if action not NULL before using it

[simgrid.git] / src / smpi / smpi_base.c

diff --git a/src/smpi/smpi_base.c b/src/smpi/smpi_base.c
index a6a3c57..2597663 100644 (file)
--- a/src/smpi/smpi_base.c
+++ b/src/smpi/smpi_base.c
@@ -763,7 +763,7 @@ void smpi_mpi_wait(MPI_Request * request, MPI_Status * status)
   }
 
 #ifdef HAVE_MC
-  if(MC_is_active())
+  if(MC_is_active() && (*request)->action)
     (*request)->action->comm.dst_data = NULL; // dangling pointer : dst_data is freed with a wait, need to set it to NULL for system state comparison
 #endif