linux-kernel - [PATCH 1/3] pinctrl: armada-37xx: Use int type to store negative error codes

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Message-Id: <20250831084958.431913-2-rongqianfeng@vivo.com>
Date: Sun, 31 Aug 2025 16:49:56 +0800
From: Qianfeng Rong <rongqianfeng@...o.com>
To: Andrew Lunn <andrew@...n.ch>,
	Gregory Clement <gregory.clement@...tlin.com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Marvell Kirkwood and Armada 370, 375, 38x,...),
	linux-gpio@...r.kernel.org (open list:PIN CONTROL SUBSYSTEM),
	linux-kernel@...r.kernel.org (open list)
Cc: Qianfeng Rong <rongqianfeng@...o.com>
Subject: [PATCH 1/3] pinctrl: armada-37xx: Use int type to store negative error codes

In armada_37xx_gpio_direction_output(), the 'ret' variable might store
the negative error codes returned by regmap_update_bits(), and in
armada_37xx_edge_both_irq_swap_pol(), the 'ret' variable directly
stores -1, so the type of the 'ret' variable needs to be changed to
int in both cases.

No effect on runtime.

Signed-off-by: Qianfeng Rong <rongqianfeng@...o.com>
---
 drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
index 881df5e08f61..81dfbd5e7f07 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -420,7 +420,8 @@ static int armada_37xx_gpio_direction_output(struct gpio_chip *chip,
 	struct armada_37xx_pinctrl *info = gpiochip_get_data(chip);
 	unsigned int en_offset = offset;
 	unsigned int reg = OUTPUT_VAL;
-	unsigned int mask, val, ret;
+	unsigned int mask, val;
+	int ret;
 
 	armada_37xx_update_reg(&reg, &offset);
 	mask = BIT(offset);
@@ -634,8 +635,9 @@ static int armada_37xx_edge_both_irq_swap_pol(struct armada_37xx_pinctrl *info,
 {
 	u32 reg_idx = pin_idx / GPIO_PER_REG;
 	u32 bit_num = pin_idx % GPIO_PER_REG;
-	u32 p, l, ret;
 	unsigned long flags;
+	u32 p, l;
+	int ret;
 
 	regmap_read(info->regmap, INPUT_VAL + 4*reg_idx, &l);
 
-- 
2.34.1