linux-kernel - [PATCH 2/5] clocksource/drivers/em_sti: Fix error return codes in em_sti

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Date:   Fri, 11 Aug 2017 16:17:38 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     tglx@...utronix.de, mingo@...nel.org
Cc:     dingtianhong@...wei.com, matt.redfearn@...tec.com,
        dan.carpenter@...cle.com, garsilva@...eddedor.com,
        mka@...omium.org, linux-kernel@...r.kernel.org,
        Frans Klaver <fransklaver@...il.com>
Subject: [PATCH 2/5] clocksource/drivers/em_sti: Fix error return codes in em_sti_probe()

From: "Gustavo A. R. Silva" <garsilva@...eddedor.com>

Propagate the return values of platform_get_irq and devm_request_irq on
failure.

Cc: Frans Klaver <fransklaver@...il.com>
Signed-off-by: Gustavo A. R. Silva <garsilva@...eddedor.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
---
 drivers/clocksource/em_sti.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/clocksource/em_sti.c b/drivers/clocksource/em_sti.c
index bc48cbf..269db74 100644
--- a/drivers/clocksource/em_sti.c
+++ b/drivers/clocksource/em_sti.c
@@ -305,7 +305,7 @@ static int em_sti_probe(struct platform_device *pdev)
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
 		dev_err(&pdev->dev, "failed to get irq\n");
-		return -EINVAL;
+		return irq;
 	}
 
 	/* map memory, let base point to the STI instance */
@@ -314,11 +314,12 @@ static int em_sti_probe(struct platform_device *pdev)
 	if (IS_ERR(p->base))
 		return PTR_ERR(p->base);
 
-	if (devm_request_irq(&pdev->dev, irq, em_sti_interrupt,
-			     IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING,
-			     dev_name(&pdev->dev), p)) {
+	ret = devm_request_irq(&pdev->dev, irq, em_sti_interrupt,
+			       IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING,
+			       dev_name(&pdev->dev), p);
+	if (ret) {
 		dev_err(&pdev->dev, "failed to request low IRQ\n");
-		return -ENOENT;
+		return ret;
 	}
 
 	/* get hold of clock */
-- 
2.7.4