From: Adrian Hunter <adrian.hunter@intel.com>
Date: Wed, 21 Mar 2018 09:49:40 +0000 (+0200)
Subject: mmc: sdhci-acpi: Fix IRQ 0
X-Git-Tag: v4.19~1407^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d58ac803cfbb92ede501409dd6afe9abb111d4f1;p=platform%2Fkernel%2Flinux-rpi3.git

mmc: sdhci-acpi: Fix IRQ 0

Zero is a valid IRQ number and is being used on some CHT tablets. Stop
treating it as an error.

Reported-by: Luke Ross <luke@lukeross.name>
Fixes: 1b7ba57ecc86 ("mmc: sdhci-acpi: Handle return value of platform_get_irq")
Cc: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
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 4065da5..32321bd 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -680,7 +680,7 @@ 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) {
+	if (host->irq < 0) {
 		err = -EINVAL;
 		goto err_free;
 	}