linux-kernel - [PATCH 5/7] hwrng: ingenic - use dev_err

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Message-Id: <20230710202733.116133-6-martin@kaiser.cx>
Date:   Mon, 10 Jul 2023 22:27:31 +0200
From:   Martin Kaiser <martin@...ser.cx>
To:     Herbert Xu <herbert@...dor.apana.org.au>
Cc:     aric.pzqi@...enic.com, linux-crypto@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Martin Kaiser <martin@...ser.cx>
Subject: [PATCH 5/7] hwrng: ingenic - use dev_err_probe in error paths

Use dev_err_probe in error paths to make the code a bit shorter.

Signed-off-by: Martin Kaiser <martin@...ser.cx>
---
 drivers/char/hw_random/ingenic-trng.c | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/drivers/char/hw_random/ingenic-trng.c b/drivers/char/hw_random/ingenic-trng.c
index 906fa78de47e..cc88a941c929 100644
--- a/drivers/char/hw_random/ingenic-trng.c
+++ b/drivers/char/hw_random/ingenic-trng.c
@@ -84,16 +84,14 @@ static int ingenic_trng_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	trng->base = devm_platform_ioremap_resource(pdev, 0);
-	if (IS_ERR(trng->base)) {
-		pr_err("%s: Failed to map DTRNG registers\n", __func__);
-		return PTR_ERR(trng->base);
-	}
+	if (IS_ERR(trng->base))
+		return dev_err_probe(&pdev->dev, PTR_ERR(trng->base),
+				     "%s: Failed to map DTRNG registers\n", __func__);
 
 	clk = devm_clk_get_enabled(&pdev->dev, NULL);
-	if (IS_ERR(clk)) {
-		pr_crit("%s: Cannot get and enable DTRNG clock\n", __func__);
-		return PTR_ERR(clk);
-	}
+	if (IS_ERR(clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(clk),
+				     "%s: Cannot get and enable DTRNG clock\n", __func__);
 
 	trng->rng.name = pdev->name;
 	trng->rng.init = ingenic_trng_init;
@@ -101,10 +99,8 @@ static int ingenic_trng_probe(struct platform_device *pdev)
 	trng->rng.read = ingenic_trng_read;
 
 	ret = hwrng_register(&trng->rng);
-	if (ret) {
-		dev_err(&pdev->dev, "Failed to register hwrng\n");
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret, "Failed to register hwrng\n");
 
 	platform_set_drvdata(pdev, trng);
 
-- 
2.30.2