From: Arvind Yadav <arvind.yadav.cs@gmail.com>
Date: Sun, 19 Nov 2017 04:52:45 +0000 (+0530)
Subject: mmc: sdhci-acpi: Handle return value of platform_get_irq
X-Git-Tag: v4.16-rc1~189^2~54
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=1b7ba57ecc864173ef42fff7f8c2e9a880b42bd2;p=users%2Fjedix%2Flinux-maple.git

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@gmail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---

diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 264f10327bf98..4065da58789d2 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -680,6 +680,10 @@ 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 = -EINVAL;
+		goto err_free;
+	}
 
 	host->ioaddr = devm_ioremap_nocache(dev, iomem->start,
 					    resource_size(iomem));