From 5a055ee933620ec5f97a72edc73f24eec7b47a99 Mon Sep 17 00:00:00 2001
From: "Halvor M. Nilsen" <Halvor.M.Nilsen@sintef.no>
Date: Thu, 14 Jun 2012 09:06:58 +0200
Subject: [PATCH] Fixed one use of wells, when wells=NULL

---
 opm/core/pressure/IncompTpfa.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/opm/core/pressure/IncompTpfa.cpp b/opm/core/pressure/IncompTpfa.cpp
index 62a30b6a8..8a45556fe 100644
--- a/opm/core/pressure/IncompTpfa.cpp
+++ b/opm/core/pressure/IncompTpfa.cpp
@@ -212,7 +212,7 @@ namespace Opm
         // \TODO refactor?
 
         const int nc = grid_.number_of_cells;
-        const int nw = wells_->number_of_wells;
+        const int nw = (wells_) ? wells_->number_of_wells : 0;
 
         // Set up dynamic data.
         computePerSolveDynamicData(dt, state, well_state);