linux-kernel - [PATCH 3/6] mmc: sdhci-acpi: Handle return value of platform_get

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Date:   Sat, 18 Nov 2017 01:58:19 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     ulf.hansson@...aro.org, carlo@...one.org, khilman@...libre.com,
        ben-linux@...ff.org, adrian.hunter@...el.com, vireshk@...nel.org,
        maxime.ripard@...e-electrons.com, wens@...e.org
Cc:     linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org
Subject: [PATCH 3/6] mmc: sdhci-acpi: Handle return value of platform_get_irq

platform_get_irq() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/mmc/host/sdhci-acpi.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index b988997..dd8129e 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -566,6 +566,10 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
 	host->hw_name	= "ACPI";
 	host->ops	= &sdhci_acpi_ops_dflt;
 	host->irq	= platform_get_irq(pdev, 0);
+	if (host->irq < 0) {
+		err = host->irq;
+		goto err_free;
+	}
 
 	host->ioaddr = devm_ioremap_nocache(dev, iomem->start,
 					    resource_size(iomem));
-- 
2.7.4