linux-kernel - [PATCH 5/6] fbdev: s3c-fb: Make use of the helper function dev_err

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Date:   Fri, 17 Sep 2021 12:22:11 +0800
From:   Cai Huoqing <caihuoqing@...du.com>
To:     <caihuoqing@...du.com>
CC:     Jingoo Han <jingoohan1@...il.com>,
        <dri-devel@...ts.freedesktop.org>, <linux-fbdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 5/6] fbdev: s3c-fb: 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>
---
 drivers/video/fbdev/s3c-fb.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/video/fbdev/s3c-fb.c b/drivers/video/fbdev/s3c-fb.c
index 3b134e1bbc38..459d159879a3 100644
--- a/drivers/video/fbdev/s3c-fb.c
+++ b/drivers/video/fbdev/s3c-fb.c
@@ -1392,18 +1392,17 @@ static int s3c_fb_probe(struct platform_device *pdev)
 	spin_lock_init(&sfb->slock);
 
 	sfb->bus_clk = devm_clk_get(dev, "lcd");
-	if (IS_ERR(sfb->bus_clk)) {
-		dev_err(dev, "failed to get bus clock\n");
-		return PTR_ERR(sfb->bus_clk);
-	}
+	if (IS_ERR(sfb->bus_clk))
+		return dev_err_probe(dev, PTR_ERR(sfb->bus_clk),
+				     "failed to get bus clock\n");
 
 	clk_prepare_enable(sfb->bus_clk);
 
 	if (!sfb->variant.has_clksel) {
 		sfb->lcd_clk = devm_clk_get(dev, "sclk_fimd");
 		if (IS_ERR(sfb->lcd_clk)) {
-			dev_err(dev, "failed to get lcd clock\n");
-			ret = PTR_ERR(sfb->lcd_clk);
+			ret = dev_err_probe(dev, PTR_ERR(sfb->lcd_clk),
+					    "failed to get lcd clock\n");
 			goto err_bus_clk;
 		}
 
-- 
2.25.1