ASoC: qdsp6: q6routing: validate port id before setting up route

Validate port id before it starts sending commands to dsp this would
make error handling simpler.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211116114721.12517-6-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/qcom/qdsp6/q6routing.c b/sound/soc/qcom/qdsp6/q6routing.c
index 243b817..cd74681 100644 (file)
--- a/sound/soc/qcom/qdsp6/q6routing.c
+++ b/sound/soc/qcom/qdsp6/q6routing.c
@@ -372,6 +372,12 @@ int q6routing_stream_open(int fedai_id, int perf_mode,
        }
 
        session = &routing_data->sessions[stream_id - 1];
+       if (session->port_id < 0) {
+               dev_err(routing_data->dev, "Routing not setup for MultiMedia%d Session\n",
+                       session->fedai_id);
+               return -EINVAL;
+       }
+
        pdata = &routing_data->port_data[session->port_id];
 
        mutex_lock(&routing_data->lock);