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From:   Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
To:     broonie@kernel.org
Cc:     perex@perex.cz, alsa-devel@alsa-project.org,
        linux-kernel@vger.kernel.org, lgirdwood@gmail.com,
        john.stultz@linaro.org, amit.pundir@linaro.org,
        bjorn.andersson@linaro.org,
        Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Subject: [PATCH v2 2/3] ASoC: qcom: sdm845: Fix array out of range on rx slim channels
Date:   Tue,  9 Mar 2021 14:21:28 +0000
Message-Id: <20210309142129.14182-3-srinivas.kandagatla@linaro.org>
In-Reply-To: <20210309142129.14182-1-srinivas.kandagatla@linaro.org>
References: <20210309142129.14182-1-srinivas.kandagatla@linaro.org>
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WCD934x has only 13 RX SLIM ports however we are setting it as 16
in set_channel_map, this will lead to array out of bounds error!

Orignally caught by enabling USBAN array out of bounds check:

Fixes: 5caf64c633a3 ("ASoC: qcom: sdm845: add support to DB845c and Lenovo Yoga")
Reported-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 sound/soc/qcom/sdm845.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/qcom/sdm845.c b/sound/soc/qcom/sdm845.c
index 1e2c2d0902ea..153e9b2de0b5 100644
--- a/sound/soc/qcom/sdm845.c
+++ b/sound/soc/qcom/sdm845.c
@@ -27,7 +27,7 @@
 #define SPK_TDM_RX_MASK         0x03
 #define NUM_TDM_SLOTS           8
 #define SLIM_MAX_TX_PORTS 16
-#define SLIM_MAX_RX_PORTS 16
+#define SLIM_MAX_RX_PORTS 13
 #define WCD934X_DEFAULT_MCLK_RATE	9600000
 
 struct sdm845_snd_data {
-- 
2.21.0