From f24a02fe6d5be453ee4605a63a16f02edcb6af68 Mon Sep 17 00:00:00 2001
From: Cai Huoqing <caihuoqing@baidu.com>
Date: Thu, 16 Sep 2021 18:42:47 +0800
Subject: drm/panel: k101-im2ba02: Make use of the helper function
 dev_err_probe()
Git-commit: a30fc787a1d3ba317e4736483ec8ae50043e6fa7
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, and the error value
gets printed.

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Acked-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210916104247.11270-1-caihuoqing@baidu.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c b/drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c
index 2a602aee61c3..cb0bb3076099 100644
--- a/drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c
+++ b/drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c
@@ -456,16 +456,13 @@ static int k101_im2ba02_dsi_probe(struct mipi_dsi_device *dsi)
 
 	ret = devm_regulator_bulk_get(&dsi->dev, ARRAY_SIZE(ctx->supplies),
 				      ctx->supplies);
-	if (ret < 0) {
-		dev_err(&dsi->dev, "Couldn't get regulators\n");
-		return ret;
-	}
+	if (ret < 0)
+		return dev_err_probe(&dsi->dev, ret, "Couldn't get regulators\n");
 
 	ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_LOW);
-	if (IS_ERR(ctx->reset)) {
-		dev_err(&dsi->dev, "Couldn't get our reset GPIO\n");
-		return PTR_ERR(ctx->reset);
-	}
+	if (IS_ERR(ctx->reset))
+		return dev_err_probe(&dsi->dev, PTR_ERR(ctx->reset),
+				     "Couldn't get our reset GPIO\n");
 
 	drm_panel_init(&ctx->panel, &dsi->dev, &k101_im2ba02_funcs,
 		       DRM_MODE_CONNECTOR_DSI);
-- 
2.38.1