message: fix for csr2csc where buffer_size could be zero
diff: @@ -71,7 +71,8 @@ extern "C" rocsparse_status rocsparse_csr2csc_buffer_size(rocsparse_handle handl
  // Quick return if possible
  if(m == 0 || n == 0 || nnz == 0)
  {
  - *buffer_size = 0;
  + // Do not return 0 as buffer size
  + *buffer_size = 4;
  return rocsparse_status_success;
  }
  @@ -92,6 +93,12 @@ extern "C" rocsparse_status rocsparse_csr2csc_buffer_size(rocsparse_handle handl
  *buffer_size += sizeof(rocsparse_int) * ((nnz - 1) / 256 + 1) * 256;
  *buffer_size += sizeof(rocsparse_int) * ((nnz - 1) / 256 + 1) * 256;
  + // Do not return 0 as size
  + if(*buffer_size == 0)
  + {
  + *buffer_size = 4;
  + }
  +
  return rocsparse_status_success;
  }
  