linux-kernel - [PATCH][next] ASoC: qcom: fix unsigned int bitwidth compared to less than zero

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Message-Id: <20201028115112.109017-1-colin.king@canonical.com>
Date:   Wed, 28 Oct 2020 11:51:12 +0000
From:   Colin King <colin.king@...onical.com>
To:     Patrick Lai <plai@...eaurora.org>,
        Banajit Goswami <bgoswami@...eaurora.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        V Sujith Kumar Reddy <vsujithk@...eaurora.org>,
        Srinivasa Rao <srivasam@...eaurora.org>,
        alsa-devel@...a-project.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] ASoC: qcom: fix unsigned int bitwidth compared to less than zero

From: Colin Ian King <colin.king@...onical.com>

The check for an error return from the call to snd_pcm_format_width
is never true as the unsigned int bitwidth can never be less than
zero. Fix this by making bitwidth an int.

Addresses-Coverity: ("Unsigned compared against 0")
Fixes: 7cb37b7bd0d3 ("ASoC: qcom: Add support for lpass hdmi driver")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 sound/soc/qcom/lpass-hdmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/qcom/lpass-hdmi.c b/sound/soc/qcom/lpass-hdmi.c
index 172952d3a5d6..abfb8737a89f 100644
--- a/sound/soc/qcom/lpass-hdmi.c
+++ b/sound/soc/qcom/lpass-hdmi.c
@@ -24,7 +24,7 @@ static int lpass_hdmi_daiops_hw_params(struct snd_pcm_substream *substream,
 	unsigned int rate = params_rate(params);
 	unsigned int channels = params_channels(params);
 	unsigned int ret;
-	unsigned int bitwidth;
+	int bitwidth;
 	unsigned int word_length;
 	unsigned int ch_sts_buf0;
 	unsigned int ch_sts_buf1;
-- 
2.27.0