When there is no TLV data in topology, extracting the TLV data
could result in a NULL pointer exception. Prevent this by making
sure that the TLV data exists before extracting it.
Signed-off-by: NRanjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: NGuennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: NPaul Olaru <paul.olaru@oss.nxp.com>
Reviewed-by: NBard Liao <bard.liao@intel.com>
Signed-off-by: NKai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20210201093128.1226603-1-kai.vehmanen@linux.intel.comSigned-off-by: NMark Brown <broonie@kernel.org>