Unsigned cannot be < 0.

[simgrid.git] / src / kernel / activity / SemaphoreImpl.cpp

diff --git a/src/kernel/activity/SemaphoreImpl.cpp b/src/kernel/activity/SemaphoreImpl.cpp
index c53825f..5e8016c 100644 (file)
--- a/src/kernel/activity/SemaphoreImpl.cpp
+++ b/src/kernel/activity/SemaphoreImpl.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2019-2022. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2019-2023. The SimGrid Team. All rights reserved.          */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
@@ -87,12 +87,12 @@ SemAcquisitionImplPtr SemaphoreImpl::acquire_async(actor::ActorImpl* issuer)
 {
   auto res = SemAcquisitionImplPtr(new kernel::activity::SemAcquisitionImpl(issuer, this), true);
 
-  if (value_ <= 0) {
-    /* No free token in the semaphore; register the acquisition */
-    ongoing_acquisitions_.push_back(res);
-  } else {
+  if (value_ > 0) {
     value_--;
     res->granted_ = true;
+  } else {
+    /* No free token in the semaphore; register the acquisition */
+    ongoing_acquisitions_.push_back(res);
   }
   return res;
 }