From: Lv Ruyi (CGEL ZTE) <lv.ruyi@zte.com.cn>
Date: Tue, 15 Mar 2022 01:12:21 +0000 (-0700)
Subject: Input: mt6779-keypad - fix signedness bug
X-Git-Tag: baikal/mips/sdk6.1~6069^2~1^2~13
X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=393380bc9ac7e0f5bcb64a7b9abad25669d2b786;p=kernel.git

Input: mt6779-keypad - fix signedness bug

The irq variable is defined as unsigned int. If the platform_get_irq()
returns a negative value, data type cast may result in error.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi (CGEL ZTE) <lv.ruyi@zte.com.cn>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20220308025054.2077162-1-lv.ruyi@zte.com.cn
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---

diff --git a/drivers/input/keyboard/mt6779-keypad.c b/drivers/input/keyboard/mt6779-keypad.c
index 5ff23250ed37d..0dbbddc7f2980 100644
--- a/drivers/input/keyboard/mt6779-keypad.c
+++ b/drivers/input/keyboard/mt6779-keypad.c
@@ -91,7 +91,7 @@ static void mt6779_keypad_clk_disable(void *data)
 static int mt6779_keypad_pdrv_probe(struct platform_device *pdev)
 {
 	struct mt6779_keypad *keypad;
-	unsigned int irq;
+	int irq;
 	u32 debounce;
 	bool wakeup;
 	int error;