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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-39d957131f9sm19598245a91.12.2026.09.14.00.29.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Sep 2026 00:29:44 -0700 (PDT) From: phucduc.bui@gmail.com To: Mark Brown , AngeloGioacchino Del Regno Cc: Liam Girdwood , Matthias Brugger , Jaroslav Kysela , Takashi Iwai , Cezary Rojewski , Cyril Chao , Kuninori Morimoto , Dan Carpenter , cassiogabrielcontato@gmail.com, linux-sound@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, bui duc phuc Subject: [PATCH v2 11/13] ASoC: mediatek: mt8189: Validate sysclk frequency Date: Mon, 14 Sep 2026 14:28:40 +0700 Message-ID: <20260914072842.24420-12-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260914072842.24420-1-phucduc.bui@gmail.com> References: <20260914072842.24420-1-phucduc.bui@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260914_082947_923033_CAF960D2 X-CRM114-Status: UNSURE ( 9.91 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: bui duc phuc A zero frequency causes a modulo-by-zero error when validating the I2S clock frequency. Reject it before performing the validation. Fixes: 7eb153585598 ("ASoC: mediatek: mt8189: add platform driver") Signed-off-by: bui duc phuc --- Changes in v2: - Check for zero frequency since freq is unsigned. sound/soc/mediatek/mt8189/mt8189-dai-i2s.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c b/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c index f20dbb410223..2202fed63fc9 100644 --- a/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c +++ b/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c @@ -1286,6 +1286,9 @@ static int mtk_dai_i2s_set_sysclk(struct snd_soc_dai *dai, dir != SND_SOC_CLOCK_OUT) return -EINVAL; + if (!freq) + return -EINVAL; + i2s_priv = afe_priv->dai_priv[dai->id]; if (!i2s_priv) return -EINVAL; -- 2.43.0