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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Stefan Schaeckeler <sschaeck@cisco.com>,
	Borislav Petkov <bp@alien8.de>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Tony Luck <tony.luck@intel.com>,
	James Morse <james.morse@arm.com>,
	Robert Richter <rric@kernel.org>, Joel Stanley <joel@jms.id.au>,
	Andrew Jeffery <andrew@aj.id.au>, Tero Kristo <t-kristo@ti.com>,
	linux-edac@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Subject: [PATCH 1/2] EDAC/aspeed: Fix handling of platform_get_irq() error
Date: Thu, 27 Aug 2020 09:07:42 +0200
Message-ID: <20200827070743.26628-1-krzk@kernel.org> (raw)

platform_get_irq() returns -ERRNO on error.  In such case comparison
to 0 would pass the check.

Fixes: 9b7e6242ee4e ("EDAC, aspeed: Add an Aspeed AST2500 EDAC driver")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
 drivers/edac/aspeed_edac.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/edac/aspeed_edac.c b/drivers/edac/aspeed_edac.c
index b194658b8b5c..fbec28dc661d 100644
--- a/drivers/edac/aspeed_edac.c
+++ b/drivers/edac/aspeed_edac.c
@@ -209,8 +209,8 @@ static int config_irq(void *ctx, struct platform_device *pdev)
 	/* register interrupt handler */
 	irq = platform_get_irq(pdev, 0);
 	dev_dbg(&pdev->dev, "got irq %d\n", irq);
-	if (!irq)
-		return -ENODEV;
+	if (irq < 0)
+		return irq;
 
 	rc = devm_request_irq(&pdev->dev, irq, mcr_isr, IRQF_TRIGGER_HIGH,
 			      DRV_NAME, ctx);
-- 
2.17.1


             reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-27  7:07 Krzysztof Kozlowski [this message]
2020-08-27  7:07 ` [PATCH 2/2] EDAC/ti: " Krzysztof Kozlowski
2020-08-27  7:13   ` Tero Kristo
     [not found] ` <0D9EC2D2-C4A0-42E9-94A5-DCFBE7BFEC43@cisco.com>
2020-08-27 23:49   ` [PATCH 1/2] EDAC/aspeed: " Stefan Schaeckeler
2020-09-01 18:51 ` Borislav Petkov

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