linux-kernel - [PATCH 2/2] hwrng: cn10k

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Message-Id: <20230721085444.496863-3-martin@kaiser.cx>
Date:   Fri, 21 Jul 2023 10:54:44 +0200
From:   Martin Kaiser <martin@...ser.cx>
To:     Herbert Xu <herbert@...dor.apana.org.au>
Cc:     linux-crypto@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Martin Kaiser <martin@...ser.cx>
Subject: [PATCH 2/2] hwrng: cn10k - use dev_err_probe

Use dev_err_probe in error paths of the probe function, making the code a
tiny bit simpler.

Signed-off-by: Martin Kaiser <martin@...ser.cx>
---
 drivers/char/hw_random/cn10k-rng.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/char/hw_random/cn10k-rng.c b/drivers/char/hw_random/cn10k-rng.c
index 794ec77feb2c..31935316a160 100644
--- a/drivers/char/hw_random/cn10k-rng.c
+++ b/drivers/char/hw_random/cn10k-rng.c
@@ -187,10 +187,8 @@ static int cn10k_rng_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	pci_set_drvdata(pdev, rng);
 
 	rng->reg_base = pcim_iomap(pdev, 0, 0);
-	if (!rng->reg_base) {
-		dev_err(&pdev->dev, "Error while mapping CSRs, exiting\n");
-		return -ENOMEM;
-	}
+	if (!rng->reg_base)
+		return dev_err_probe(&pdev->dev, -ENOMEM, "Error while mapping CSRs, exiting\n");
 
 	rng->ops.name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
 				       "cn10k-rng-%s", dev_name(&pdev->dev));
@@ -205,10 +203,8 @@ static int cn10k_rng_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	reset_rng_health_state(rng);
 
 	err = devm_hwrng_register(&pdev->dev, &rng->ops);
-	if (err) {
-		dev_err(&pdev->dev, "Could not register hwrng device.\n");
-		return err;
-	}
+	if (err)
+		return dev_err_probe(&pdev->dev, err, "Could not register hwrng device.\n");
 
 	return 0;
 }
-- 
2.30.2