!!$ 
!!$ 
!!$                           MLD2P4  version 1.0
!!$  MultiLevel Domain Decomposition Parallel Preconditioners Package
!!$             based on PSBLAS (Parallel Sparse BLAS version 2.2)
!!$  
!!$  (C) Copyright 2008
!!$
!!$                      Salvatore Filippone  University of Rome Tor Vergata       
!!$                      Alfredo Buttari      University of Rome Tor Vergata
!!$                      Pasqua D'Ambra       ICAR-CNR, Naples
!!$                      Daniela di Serafino  Second University of Naples
!!$ 
!!$  Redistribution and use in source and binary forms, with or without
!!$  modification, are permitted provided that the following conditions
!!$  are met:
!!$    1. Redistributions of source code must retain the above copyright
!!$       notice, this list of conditions and the following disclaimer.
!!$    2. Redistributions in binary form must reproduce the above copyright
!!$       notice, this list of conditions, and the following disclaimer in the
!!$       documentation and/or other materials provided with the distribution.
!!$    3. The name of the MLD2P4 group or the names of its contributors may
!!$       not be used to endorse or promote products derived from this
!!$       software without specific written permission.
!!$ 
!!$  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
!!$  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
!!$  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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!!$ 
!!$
!!$ 
!!$
! File: mld_sprecfree.f90
!
! Subroutine: mld_sprecfree
! Version:    real
!
!  This routine deallocates the preconditioner data structure.
!
!
! Arguments:
!    p       -  type(mld_sprec_type), input/output.
!               The preconditioner data structure to be deallocated.
!    info    -  integer, output.
!               Error code.
!  
subroutine mld_sprecfree(p,info)
  
  use psb_base_mod
  use mld_prec_mod, mld_protect_name => mld_sprecfree

  implicit none

  ! Arguments
  type(mld_sprec_type), intent(inout) :: p
  integer, intent(out)                :: info

  ! Local variables
  integer             :: me,err_act,i
  character(len=20)   :: name

  if(psb_get_errstatus().ne.0) return 
  info=0
  name = 'mld_sprecfree'
  call psb_erractionsave(err_act)

  me=-1

  if (allocated(p%precv)) then 
    do i=1,size(p%precv) 
      call mld_onelev_precfree(p%precv(i),info)
    end do
    deallocate(p%precv)
  end if
  call psb_erractionrestore(err_act)
  return

9999 continue
  call psb_erractionrestore(err_act)
  if (err_act.eq.psb_act_abort_) then
     call psb_error()
     return
  end if
  return

end subroutine mld_sprecfree