linux-kernel - [PATCH 2/4] ASoC: mediatek: mt9195-mt6359: fix UNINIT problem

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20230307040938.7484-3-trevor.wu@mediatek.com>
Date:   Tue, 7 Mar 2023 12:09:36 +0800
From:   Trevor Wu <trevor.wu@...iatek.com>
To:     <broonie@...nel.org>, <lgirdwood@...il.com>, <tiwai@...e.com>,
        <perex@...ex.cz>, <matthias.bgg@...il.com>,
        <angelogioacchino.delregno@...labora.com>
CC:     <trevor.wu@...iatek.com>, <jiaxin.yu@...iatek.com>,
        <alsa-devel@...a-project.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/4] ASoC: mediatek: mt9195-mt6359: fix UNINIT problem

Coverity shows using uninitialized value monitor. When regmap_read
returns an error, monitor keeps the value left from earlier
computation. To prevent from the unexpected result in the case, assign
0 to monitor.

Signed-off-by: Trevor Wu <trevor.wu@...iatek.com>
---
 sound/soc/mediatek/mt8195/mt8195-mt6359.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/mediatek/mt8195/mt8195-mt6359.c b/sound/soc/mediatek/mt8195/mt8195-mt6359.c
index 4682748d82be..ceca882ecff7 100644
--- a/sound/soc/mediatek/mt8195/mt8195-mt6359.c
+++ b/sound/soc/mediatek/mt8195/mt8195-mt6359.c
@@ -158,7 +158,7 @@ static int mt8195_mt6359_mtkaif_calibration(struct snd_soc_pcm_runtime *rtd)
 	int mtkaif_phase_cycle[MT8195_MTKAIF_MISO_NUM];
 	int mtkaif_calibration_num_phase;
 	bool mtkaif_calibration_ok;
-	unsigned int monitor;
+	unsigned int monitor = 0;
 	int counter;
 	int phase;
 	int i;
-- 
2.18.0