linux-kernel - [PATCH] hwrng: omap - Delete an error message in of_get_omap_rng_device

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Date:   Sat, 4 Apr 2020 16:56:57 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     linux-crypto@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Deepak Saxena <dsaxena@...xity.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Matt Mackall <mpm@...enic.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Tang Bin <tangbin@...s.chinamobile.com>
Subject: [PATCH] hwrng: omap - Delete an error message in
 of_get_omap_rng_device_details()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 4 Apr 2020 16:45:57 +0200

The function “platform_get_irq” can log an error already.
Thus omit a redundant message for the exception handling in the
calling function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/char/hw_random/omap-rng.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index 65952393e1bb..7290c603fcb8 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -392,11 +392,8 @@ static int of_get_omap_rng_device_details(struct omap_rng_dev *priv,
 	if (of_device_is_compatible(dev->of_node, "ti,omap4-rng") ||
 	    of_device_is_compatible(dev->of_node, "inside-secure,safexcel-eip76")) {
 		irq = platform_get_irq(pdev, 0);
-		if (irq < 0) {
-			dev_err(dev, "%s: error getting IRQ resource - %d\n",
-				__func__, irq);
+		if (irq < 0)
 			return irq;
-		}

 		err = devm_request_irq(dev, irq, omap4_rng_irq,
 				       IRQF_TRIGGER_NONE, dev_name(dev), priv);
--
2.26.0