small error in petsc helpers corrected

AMDiS/src/parallel/PetscHelper.h

@@ -126,7 +126,7 @@ namespace AMDiS
   // functions for PETSc API changes
   namespace petsc
   {
-    inline PetscErrorCode options_view(etscViewer viewer)
+    inline PetscErrorCode options_view(PetscViewer viewer)
     {
 #if (PETSC_VERSION_MINOR >= 7)
       return PetscOptionsView(PETSC_NULL, PetscViewer);
@@ -153,7 +153,7 @@ namespace AMDiS
 #endif
     }
 
-    inline PetscErrorCode ksp_get_operators(KSP ksp, Mat Amat,Mat Pmat)
+    inline PetscErrorCode ksp_get_operators(KSP ksp, Mat *Amat,Mat *Pmat)
     {
 #if (PETSC_VERSION_MINOR >= 5)
       return KSPGetOperators(ksp, Amat, Pmat);