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From:   Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
To:     broonie@kernel.org
Cc:     lgirdwood@gmail.com, perex@perex.cz, tiwai@suse.com,
        pierre-louis.bossart@linux.intel.com, alsa-devel@alsa-project.org,
        linux-kernel@vger.kernel.org, quic_srivasam@quicinc.com,
        Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Subject: [PATCH v2 1/9] ASoC: codecs: rx-macro: fix accessing compander for aux
Date:   Tue, 22 Feb 2022 18:32:04 +0000
Message-Id: <20220222183212.11580-2-srinivas.kandagatla@linaro.org>
In-Reply-To: <20220222183212.11580-1-srinivas.kandagatla@linaro.org>
References: <20220222183212.11580-1-srinivas.kandagatla@linaro.org>
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AUX interpolator does not have compander, so check before accessing
compander data for this.

Without this checkan array of out bounds access will be made in
comp_enabled[] array.

Fixes: 4f692926f562 ("ASoC: codecs: lpass-rx-macro: add dapm widgets and route")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 sound/soc/codecs/lpass-rx-macro.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/soc/codecs/lpass-rx-macro.c b/sound/soc/codecs/lpass-rx-macro.c
index 2b272a82eabf..32e85d2e9b90 100644
--- a/sound/soc/codecs/lpass-rx-macro.c
+++ b/sound/soc/codecs/lpass-rx-macro.c
@@ -2039,6 +2039,10 @@ static int rx_macro_load_compander_coeff(struct snd_soc_component *component,
 	int i;
 	int hph_pwr_mode;
 
+	/* AUX does not have compander */
+	if (comp == INTERP_AUX)
+		return 0;
+
 	if (!rx->comp_enabled[comp])
 		return 0;
 
-- 
2.21.0