break
		}
		if p.isUnsafeData(c.Fun, true) {
			return true
		}
		if !p.isType(c.Fun) {
			break
		}
		x = c.Args[0]
	}
	return false
}

// isType reports whether the expression is definitely a type.
// This is conservative--it returns false for an unknown identifier.
func (p *Package) isType(t ast.Expr) bool {
	switch t := t.(type) {
	case *ast.SelectorExpr:

		s.drivePath = ep.Path
		return s, err
	}

	info, rootDrive, err := getDiskInfo(s.drivePath)
	if err != nil {
		return s, err
	}

	s.major = info.Major
	s.minor = info.Minor
	s.fsType = info.FSType

	if rootDrive {
		return s, errDriveIsRoot
	}

	// Sanitize before setting it
	if info.NRRequests > 0 {
		s.nrRequests = info.NRRequests
	}

	// We stagger listings only on HDDs.