ASoC: topology: Add missing size check

When we parse "values" we perform check if there is correct number of
them. However similar check is missing in case of "texts", add it.
Signed-off-by: NAmadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Reviewed-by: NRanjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20201210152541.191728-2-amadeuszx.slawinski@linux.intel.comSigned-off-by: NMark Brown <broonie@kernel.org>

sound/soc/soc-topology.c

@@ -856,6 +856,9 @@ static int soc_tplg_denum_create_texts(struct soc_tplg *tplg, struct soc_enum *s
 {
 	int i, ret;
 
+	if (le32_to_cpu(ec->items) > ARRAY_SIZE(ec->texts))
+		return -EINVAL;
+
 	se->dobj.control.dtexts =
 		devm_kcalloc(tplg->dev, le32_to_cpu(ec->items), sizeof(char *), GFP_KERNEL);
 	if (se->dobj.control.dtexts == NULL)