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Subject[PATCH AUTOSEL 5.4 03/25] ASoC: qdsp6: q6routing: validate port id before setting up route
Date
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

[ Upstream commit 6712c2e18c06b0976559fd4bd47774b243038e9c ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/qcom/qdsp6/q6routing.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/sound/soc/qcom/qdsp6/q6routing.c b/sound/soc/qcom/qdsp6/q6routing.c
index 745cc9dd14f38..4c240e9f5eed8 100644
--- a/sound/soc/qcom/qdsp6/q6routing.c
+++ b/sound/soc/qcom/qdsp6/q6routing.c
@@ -320,6 +320,12 @@ 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);
--
2.33.0
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