From: Ranjani Sridharan ranjani.sridharan@linux.intel.com
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: Ranjani Sridharan ranjani.sridharan@linux.intel.com Reviewed-by: Guennadi Liakhovetski guennadi.liakhovetski@linux.intel.com Reviewed-by: Paul Olaru paul.olaru@oss.nxp.com Reviewed-by: Bard Liao bard.liao@intel.com Signed-off-by: Kai Vehmanen kai.vehmanen@linux.intel.com --- sound/soc/sof/topology.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c index b69f493b5faa..46089000524d 100644 --- a/sound/soc/sof/topology.c +++ b/sound/soc/sof/topology.c @@ -1073,7 +1073,7 @@ static int sof_control_load_volume(struct snd_soc_component *scomp, scontrol->cmd = SOF_CTRL_CMD_VOLUME;
/* extract tlv data */ - if (get_tlv_data(kc->tlv.p, tlv) < 0) { + if (!kc->tlv.p || get_tlv_data(kc->tlv.p, tlv) < 0) { dev_err(scomp->dev, "error: invalid TLV data\n"); ret = -EINVAL; goto out_free;
base-commit: 8ac9e476b86851c94e0f33bea758e0a00e3f875e