ASoC: topology: Check return value of soc_tplg_create_tlv

Function soc_tplg_create_tlv can fail, so we should check if it succeded
or not and proceed appropriately.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200327204729.397-3-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 73fc304..f37a72a 100644 (file)
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -894,7 +894,13 @@ static int soc_tplg_dmixer_create(struct soc_tplg *tplg, unsigned int count,
                }
 
                /* create any TLV data */
-               soc_tplg_create_tlv(tplg, &kc, &mc->hdr);
+               err = soc_tplg_create_tlv(tplg, &kc, &mc->hdr);
+               if (err < 0) {
+                       dev_err(tplg->dev, "ASoC: failed to create TLV %s\n",
+                               mc->hdr.name);
+                       kfree(sm);
+                       continue;
+               }
 
                /* pass control to driver for optional further init */
                err = soc_tplg_init_kcontrol(tplg, &kc,
@@ -1355,7 +1361,13 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
                }
 
                /* create any TLV data */
-               soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr);
+               err = soc_tplg_create_tlv(tplg, &kc[i], &mc->hdr);
+               if (err < 0) {
+                       dev_err(tplg->dev, "ASoC: failed to create TLV %s\n",
+                               mc->hdr.name);
+                       kfree(sm);
+                       continue;
+               }
 
                /* pass control to driver for optional further init */
                err = soc_tplg_init_kcontrol(tplg, &kc[i],