linux-kernel - [PATCH AUTOSEL 4.18 09/48] ASoC: q6routing: initialize data correctly

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Message-Id: <20181005161424.20521-9-sashal@kernel.org>
Date:   Fri,  5 Oct 2018 12:13:45 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     stable@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH AUTOSEL 4.18 09/48] ASoC: q6routing: initialize data correctly

From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>

[ Upstream commit 7aa09ff24301535491cd4de1b93107ee91449a12 ]

Some of the router data fields are left as default zeros which are
valid dai ids, so initialize these to invalid value of -1.

Without intializing these correctly get_session_from_id() can return
incorrect session resulting in not closing the opened copp and messing
up with the copp ref count.

Fixes: e3a33673e845 ("ASoC: qdsp6: q6routing: Add q6routing driver")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
 sound/soc/qcom/qdsp6/q6routing.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/qcom/qdsp6/q6routing.c b/sound/soc/qcom/qdsp6/q6routing.c
index 593f66b8622f..33bb97c0b6b6 100644
--- a/sound/soc/qcom/qdsp6/q6routing.c
+++ b/sound/soc/qcom/qdsp6/q6routing.c
@@ -933,8 +933,10 @@ static int msm_routing_probe(struct snd_soc_component *c)
 {
 	int i;
 
-	for (i = 0; i < MAX_SESSIONS; i++)
+	for (i = 0; i < MAX_SESSIONS; i++) {
 		routing_data->sessions[i].port_id = -1;
+		routing_data->sessions[i].fedai_id = -1;
+	}
 
 	return 0;
 }
-- 
2.17.1