linux-kernel - [PATCH -next] crypto: aspeed - Fix check for platform_get

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Date:   Tue, 20 Sep 2022 11:21:18 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <neal_liu@...eedtech.com>, <herbert@...dor.apana.org.au>,
        <davem@...emloft.net>, <joel@....id.au>, <andrew@...id.au>,
        <johnny_huang@...eedtech.com>, <dphadke@...ux.microsoft.com>
CC:     <linux-aspeed@...ts.ozlabs.org>, <linux-crypto@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH -next] crypto: aspeed - Fix check for platform_get_irq() errors

The platform_get_irq() function returns negative on error and
positive non-zero values on success. It never returns zero, but if it
did then treat that as a success.

Also remove redundant dev_err() print as platform_get_irq() already
prints an error.

Fixes: 108713a713c7 ("crypto: aspeed - Add HACE hash driver")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/crypto/aspeed/aspeed-hace.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/crypto/aspeed/aspeed-hace.c b/drivers/crypto/aspeed/aspeed-hace.c
index 3f880aafb6a2..f7f1d33defb1 100644
--- a/drivers/crypto/aspeed/aspeed-hace.c
+++ b/drivers/crypto/aspeed/aspeed-hace.c
@@ -130,10 +130,8 @@ static int aspeed_hace_probe(struct platform_device *pdev)
 
 	/* Get irq number and register it */
 	hace_dev->irq = platform_get_irq(pdev, 0);
-	if (!hace_dev->irq) {
-		dev_err(&pdev->dev, "Failed to get interrupt\n");
+	if (hace_dev->irq < 0)
 		return -ENXIO;
-	}
 
 	rc = devm_request_irq(&pdev->dev, hace_dev->irq, aspeed_hace_irq, 0,
 			      dev_name(&pdev->dev), hace_dev);
-- 
2.17.1