ASoC: qcom: audioreach: fix potential null pointer dereference

commit 8318e04 upstream.

It is possible that the topology parsing function
audioreach_widget_load_module_common() could return NULL or an error
pointer. Add missing NULL check so that we do not dereference it.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Cc: Stable@vger.kernel.org
Fixes: 36ad9bf ("ASoC: qdsp6: audioreach: add topology support")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Link: https://patch.msgid.link/20250825101247.152619-2-srinivas.kandagatla@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: Srinivas Kandagatla

sound/soc/qcom/qdsp6/topology.c

@@ -586,8 +586,8 @@ static int audioreach_widget_load_module_common(struct snd_soc_component *compon
 		return PTR_ERR(cont);
 
 	mod = audioreach_parse_common_tokens(apm, cont, &tplg_w->priv, w);
-	if (IS_ERR(mod))
-		return PTR_ERR(mod);
+	if (IS_ERR_OR_NULL(mod))
+		return mod ? PTR_ERR(mod) : -ENODEV;
 
 	dobj = &w->dobj;
 	dobj->private = mod;