linux-kernel - [PATCH 4/4] fbdev: omapfb: panel-tpo-td043mtea1: Make use of the helper function dev_err

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Date:   Fri, 17 Sep 2021 12:24:13 +0800
From:   Cai Huoqing <caihuoqing@...du.com>
To:     <caihuoqing@...du.com>
CC:     <linux-fbdev@...r.kernel.org>, <linux-omap@...r.kernel.org>,
        <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 4/4] fbdev: omapfb: panel-tpo-td043mtea1: Make use of the helper function dev_err_probe()

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.
Using dev_err_probe() can reduce code size, and the error value
gets printed.

Signed-off-by: Cai Huoqing <caihuoqing@...du.com>
---
 .../video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c   | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
index afac1d9445aa..3db0232c31ab 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
@@ -517,8 +517,7 @@ static int tpo_td043_probe(struct spi_device *spi)
 
 	ddata->vcc_reg = devm_regulator_get(&spi->dev, "vcc");
 	if (IS_ERR(ddata->vcc_reg)) {
-		dev_err(&spi->dev, "failed to get LCD VCC regulator\n");
-		r = PTR_ERR(ddata->vcc_reg);
+		r = dev_err_probe(&spi->dev, r, "failed to get LCD VCC regulator\n");
 		goto err_regulator;
 	}
 
-- 
2.25.1