!!$ 
!!$              Parallel Sparse BLAS  version 3.0
!!$    (C) Copyright 2006, 2007, 2008, 2009, 2010
!!$                       Salvatore Filippone    University of Rome Tor Vergata
!!$                       Alfredo Buttari        CNRS-IRIT, Toulouse
!!$ 
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!!$  
! File: psb_dspfree.f90
!
! Subroutine: psb_dspfree
!    Frees a sparse matrix structure.
! 
! Arguments: 
!    a        - type(psb_d_sparse_mat).          The sparse matrix to be freed.      
!    desc_a   - type(psb_desc_type).            The communication descriptor.
!    info     - integer.                          return code.
!
subroutine psb_dspfree(a, desc_a,info)
  use psb_sparse_mod, psb_protect_name => psb_dspfree
  implicit none

  !....parameters...
  type(psb_desc_type), intent(in)       :: desc_a
  type(psb_d_sparse_mat), intent(inout) :: a
  integer, intent(out)                  :: info
  !...locals....
  integer             :: ictxt,err_act
  character(len=20)   :: name

  if(psb_get_errstatus() /= 0) return 
  info=psb_success_
  name = 'psb_dspfree'
  call psb_erractionsave(err_act)

  if (.not.allocated(desc_a%matrix_data)) then 
    info=psb_err_forgot_spall_
    call psb_errpush(info,name)
    return
  else
    ictxt = psb_cd_get_context(desc_a)
  end if

  !...deallocate a....
  call a%free()

  call psb_erractionrestore(err_act)
  return

9999 continue
  call psb_erractionrestore(err_act)
  if (err_act == psb_act_abort_) then
    call psb_error(ictxt)
    return
  end if
  return

end subroutine psb_dspfree