linux-kernel - [PATCH] backlight: l4f00242t03: Add a single error handling block at the end of the function.

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Message-ID: <20210907062339.1828-1-caihuoqing@baidu.com>
Date:   Tue, 7 Sep 2021 14:23:39 +0800
From:   Cai Huoqing <caihuoqing@...du.com>
To:     <caihuoqing@...du.com>
CC:     Lee Jones <lee.jones@...aro.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>,
        <dri-devel@...ts.freedesktop.org>, <linux-fbdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] backlight: l4f00242t03: Add a single error handling block at the end of the function.

A single error handling block at the end of the function could
be brought in to make code a little more concise.

Signed-off-by: Cai Huoqing <caihuoqing@...du.com>
---
 drivers/video/backlight/l4f00242t03.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/video/backlight/l4f00242t03.c b/drivers/video/backlight/l4f00242t03.c
index 46f97d1c3d21..c6f540f1b507 100644
--- a/drivers/video/backlight/l4f00242t03.c
+++ b/drivers/video/backlight/l4f00242t03.c
@@ -65,14 +65,12 @@ static void l4f00242t03_lcd_init(struct spi_device *spi)
 	ret = regulator_set_voltage(priv->core_reg, 2800000, 2800000);
 	if (ret) {
 		dev_err(&spi->dev, "failed to set the core regulator voltage.\n");
-		regulator_disable(priv->io_reg);
-		return;
+		goto err_disable_reg;
 	}
 	ret = regulator_enable(priv->core_reg);
 	if (ret) {
 		dev_err(&spi->dev, "failed to enable the core regulator.\n");
-		regulator_disable(priv->io_reg);
-		return;
+		goto err_disable_reg;
 	}
 
 	l4f00242t03_reset(priv->reset);
@@ -80,6 +78,10 @@ static void l4f00242t03_lcd_init(struct spi_device *spi)
 	gpiod_set_value(priv->enable, 1);
 	msleep(60);
 	spi_write(spi, (const u8 *)cmd, ARRAY_SIZE(cmd) * sizeof(u16));
+	return;
+
+err_disable_reg:
+	regulator_disable(priv->io_reg);
 }
 
 static void l4f00242t03_lcd_powerdown(struct spi_device *spi)
-- 
2.25.1