From patchwork Wed Jul 19 07:18:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Kaiser X-Patchwork-Id: 704641 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 27E2AEB64DA for ; Wed, 19 Jul 2023 07:20:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229974AbjGSHU0 (ORCPT ); Wed, 19 Jul 2023 03:20:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52036 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229909AbjGSHUQ (ORCPT ); Wed, 19 Jul 2023 03:20:16 -0400 Received: from viti.kaiser.cx (viti.kaiser.cx [IPv6:2a01:238:43fe:e600:cd0c:bd4a:7a3:8e9f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 14164E43; Wed, 19 Jul 2023 00:20:15 -0700 (PDT) Received: from ipservice-092-217-093-053.092.217.pools.vodafone-ip.de ([92.217.93.53] helo=martin-debian-2.paytec.ch) by viti.kaiser.cx with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1qM1Tp-0008I7-LB; Wed, 19 Jul 2023 09:20:13 +0200 From: Martin Kaiser To: Herbert Xu Cc: linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Martin Kaiser Subject: [PATCH 4/4] hwrng: cctrng - use dev_err_probe in error paths Date: Wed, 19 Jul 2023 09:18:06 +0200 Message-Id: <20230719071806.335718-5-martin@kaiser.cx> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230719071806.335718-1-martin@kaiser.cx> References: <20230719071806.335718-1-martin@kaiser.cx> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Use dev_err_probe in error paths to make the code a bit shorter. Signed-off-by: Martin Kaiser --- drivers/char/hw_random/cctrng.c | 30 ++++++++++-------------------- 1 file changed, 10 insertions(+), 20 deletions(-) diff --git a/drivers/char/hw_random/cctrng.c b/drivers/char/hw_random/cctrng.c index 2a1887f6483f..1abbff04a015 100644 --- a/drivers/char/hw_random/cctrng.c +++ b/drivers/char/hw_random/cctrng.c @@ -485,10 +485,8 @@ static int cctrng_probe(struct platform_device *pdev) drvdata->circ.buf = (char *)drvdata->data_buf; drvdata->cc_base = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(drvdata->cc_base)) { - dev_err(dev, "Failed to ioremap registers"); - return PTR_ERR(drvdata->cc_base); - } + if (IS_ERR(drvdata->cc_base)) + return dev_err_probe(dev, PTR_ERR(drvdata->cc_base), "Failed to ioremap registers"); /* Then IRQ */ irq = platform_get_irq(pdev, 0); @@ -497,10 +495,8 @@ static int cctrng_probe(struct platform_device *pdev) /* parse sampling rate from device tree */ rc = cc_trng_parse_sampling_ratio(drvdata); - if (rc) { - dev_err(dev, "Failed to get legal sampling ratio for rosc\n"); - return rc; - } + if (rc) + return dev_err_probe(dev, rc, "Failed to get legal sampling ratio for rosc\n"); drvdata->clk = devm_clk_get_optional_enabled(dev, NULL); if (IS_ERR(drvdata->clk)) @@ -513,10 +509,8 @@ static int cctrng_probe(struct platform_device *pdev) /* register the driver isr function */ rc = devm_request_irq(dev, irq, cc_isr, IRQF_SHARED, "cctrng", drvdata); - if (rc) { - dev_err(dev, "Could not register to interrupt %d\n", irq); - return rc; - } + if (rc) + return dev_err_probe(dev, rc, "Could not register to interrupt %d\n", irq); dev_dbg(dev, "Registered to IRQ: %d\n", irq); /* Clear all pending interrupts */ @@ -531,17 +525,13 @@ static int cctrng_probe(struct platform_device *pdev) /* init PM */ rc = cc_trng_pm_init(drvdata); - if (rc) { - dev_err(dev, "cc_trng_pm_init failed\n"); - return rc; - } + if (rc) + return dev_err_probe(dev, rc, "cc_trng_pm_init failed\n"); /* increment device's usage counter */ rc = cc_trng_pm_get(dev); - if (rc) { - dev_err(dev, "cc_trng_pm_get returned %x\n", rc); - return rc; - } + if (rc) + return dev_err_probe(dev, rc, "cc_trng_pm_get returned %x\n", rc); /* set pending_hw to verify that HW won't be triggered from read */ atomic_set(&drvdata->pending_hw, 1);