From: David Wells <wellsd2@rpi.edu>
Date: Tue, 3 Jan 2017 17:43:45 +0000 (-0500)
Subject: Get rid of a null pointer dereference.
X-Git-Tag: v8.5.0-rc1~291^2~3
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d6937e7536b60bb295575cd5e9fe5ea0361804f6;p=dealii.git

Get rid of a null pointer dereference.

This was caught by cppcheck.
---

diff --git a/include/deal.II/lac/iterative_inverse.h b/include/deal.II/lac/iterative_inverse.h
index 8ca447fb97..e0d9dc2250 100644
--- a/include/deal.II/lac/iterative_inverse.h
+++ b/include/deal.II/lac/iterative_inverse.h
@@ -129,10 +129,9 @@ inline
 void
 IterativeInverse<VectorType>::initialize(const MatrixType &m, const PreconditionerType &p)
 {
-  // dummy variable
-  VectorType *v = 0;
-  matrix = std_cxx11::shared_ptr<PointerMatrixBase<VectorType> > (new_pointer_matrix_base(m, *v));
-  preconditioner = std_cxx11::shared_ptr<PointerMatrixBase<VectorType> > (new_pointer_matrix_base(p, *v));
+  VectorType v;
+  matrix = std_cxx11::shared_ptr<PointerMatrixBase<VectorType> > (new_pointer_matrix_base(m, v));
+  preconditioner = std_cxx11::shared_ptr<PointerMatrixBase<VectorType> > (new_pointer_matrix_base(p, v));
 }