From 3103f183e70e3104a09fe3dc5d30c263f7952f21 Mon Sep 17 00:00:00 2001
From: Cai Huoqing <caihuoqing@baidu.com>
Date: Thu, 16 Sep 2021 18:46:42 +0800
Subject: drm/panel: td043mtea1: Make use of the helper function
 dev_err_probe()
Git-commit: a8daf03fa2d49c8892c3de924742b1a47b62f3e6
Patch-mainline: v5.17-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225

When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
And using dev_err_probe() can reduce code size, the error value
gets printed.

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210916104642.11728-1-caihuoqing@baidu.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/panel/panel-tpo-td043mtea1.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-tpo-td043mtea1.c b/drivers/gpu/drm/panel/panel-tpo-td043mtea1.c
index bacaf1b7fb70..1866cdb8f9c1 100644
--- a/drivers/gpu/drm/panel/panel-tpo-td043mtea1.c
+++ b/drivers/gpu/drm/panel/panel-tpo-td043mtea1.c
@@ -431,16 +431,14 @@ static int td043mtea1_probe(struct spi_device *spi)
 	memcpy(lcd->gamma, td043mtea1_def_gamma, sizeof(lcd->gamma));
 
 	lcd->vcc_reg = devm_regulator_get(&spi->dev, "vcc");
-	if (IS_ERR(lcd->vcc_reg)) {
-		dev_err(&spi->dev, "failed to get VCC regulator\n");
-		return PTR_ERR(lcd->vcc_reg);
-	}
+	if (IS_ERR(lcd->vcc_reg))
+		return dev_err_probe(&spi->dev, PTR_ERR(lcd->vcc_reg),
+				     "failed to get VCC regulator\n");
 
 	lcd->reset_gpio = devm_gpiod_get(&spi->dev, "reset", GPIOD_OUT_HIGH);
-	if (IS_ERR(lcd->reset_gpio)) {
-		dev_err(&spi->dev, "failed to get reset GPIO\n");
-		return PTR_ERR(lcd->reset_gpio);
-	}
+	if (IS_ERR(lcd->reset_gpio))
+		return dev_err_probe(&spi->dev, PTR_ERR(lcd->reset_gpio),
+				     "failed to get reset GPIO\n");
 
 	spi->bits_per_word = 16;
 	spi->mode = SPI_MODE_0;
-- 
2.38.1