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Wed, 18 Jan 2023 14:20:40 +0800 From: Guodong Liu To: Sean Wang , Linus Walleij , Matthias Brugger , Light Hsieh , Rob Herring , AngeloGioacchino Del Regno CC: , , , , Zhiyong Tao , Guodong Liu Subject: [PATCH 1/2] pinctrl: mediatek: Initialize variable pullen and pullup to zero Date: Wed, 18 Jan 2023 14:20:35 +0800 Message-ID: <20230118062036.26258-2-Guodong.Liu@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230118062036.26258-1-Guodong.Liu@mediatek.com> References: <20230118062036.26258-1-Guodong.Liu@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230118_062115_801166_D458CEA0 X-CRM114-Status: GOOD ( 14.32 ) 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 Coverity spotted that pullen and pullup is not initialized to zero in mtk_pctrl_show_one_pin. The uninitialized variable pullen is used in assignment statement "rsel = pullen;" in mtk_pctrl_show_one_pin, and Uninitialized variable pullup is used when calling scnprintf. Fix this coverity by initializing pullen and pullup as zero. Fixes: 184d8e13f9b1 ("pinctrl: mediatek: Add support for pin configuration dump via debugfs.") Signed-off-by: Guodong Liu Reviewed-by: AngeloGioacchino Del Regno --- drivers/pinctrl/mediatek/pinctrl-paris.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c index f2ce3f626dd1..e736c1610f3c 100644 --- a/drivers/pinctrl/mediatek/pinctrl-paris.c +++ b/drivers/pinctrl/mediatek/pinctrl-paris.c @@ -635,7 +635,7 @@ static int mtk_hw_get_value_wrap(struct mtk_pinctrl *hw, unsigned int gpio, int ssize_t mtk_pctrl_show_one_pin(struct mtk_pinctrl *hw, unsigned int gpio, char *buf, unsigned int buf_len) { - int pinmux, pullup, pullen, len = 0, r1 = -1, r0 = -1, rsel = -1; + int pinmux, pullup = 0, pullen = 0, len = 0, r1 = -1, r0 = -1, rsel = -1; const struct mtk_pin_desc *desc; u32 try_all_type = 0;