From 71474da5fdbf2dff32fc80fc59418595c4178af2 Mon Sep 17 00:00:00 2001
From: Brecht Van Lommel <brecht@blender.org>
Date: Tue, 2 Jan 2024 16:17:53 +0100
Subject: [PATCH] Fix RNG memory leak on various error conditions

This memory leak shows up in the flaky blendfile_versioning test, and
this may help fix it.
---
 source/blender/blenkernel/intern/cloth.cc            | 1 +
 source/blender/blenkernel/intern/particle_system.cc  | 1 +
 source/blender/blenlib/tests/BLI_delaunay_2d_test.cc | 1 +
 3 files changed, 3 insertions(+)

diff --git a/source/blender/blenkernel/intern/cloth.cc b/source/blender/blenkernel/intern/cloth.cc
index 20beed8c508..d2916bf4fa3 100644
--- a/source/blender/blenkernel/intern/cloth.cc
+++ b/source/blender/blenkernel/intern/cloth.cc
@@ -1565,6 +1565,7 @@ static bool cloth_build_springs(ClothModifierData *clmd, Mesh *mesh)
           if (tmp_mesh) {
             BKE_id_free(nullptr, &tmp_mesh->id);
           }
+          BLI_rng_free(rng);
           return false;
         }
       }
diff --git a/source/blender/blenkernel/intern/particle_system.cc b/source/blender/blenkernel/intern/particle_system.cc
index 32d5c0c1b17..7db3acb254a 100644
--- a/source/blender/blenkernel/intern/particle_system.cc
+++ b/source/blender/blenkernel/intern/particle_system.cc
@@ -4353,6 +4353,7 @@ static void particles_fluid_step(ParticleSimulationData *sim,
           BLI_snprintf(debugStrBuffer,
                        sizeof(debugStrBuffer),
                        "particles_fluid_step::error - unknown particle system type\n");
+          BLI_rng_free(sim->rng);
           return;
         }
 #  if 0
diff --git a/source/blender/blenlib/tests/BLI_delaunay_2d_test.cc b/source/blender/blenlib/tests/BLI_delaunay_2d_test.cc
index 6485499e5da..0d245043fe8 100644
--- a/source/blender/blenlib/tests/BLI_delaunay_2d_test.cc
+++ b/source/blender/blenlib/tests/BLI_delaunay_2d_test.cc
@@ -2086,6 +2086,7 @@ void rand_delaunay_test(int test_kind,
         }
         default:
           std::cout << "unknown delaunay test type\n";
+          BLI_rng_free(rng);
           return;
       }
       if (otype != CDT_FULL) {