linux-kernel - [PATCH] ACPI/IORT: Fix error handling

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Date:   Mon, 23 Jan 2017 21:50:08 +0100
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     lorenzo.pieralisi@....com, hanjun.guo@...aro.org,
        sudeep.holla@....com
Cc:     linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH] ACPI/IORT: Fix error handling

If 'platform_device_alloc()' returns NULL, the current code returns
0, which means success. Return -ENOMEM instead.

Fixes: 846f0e9e74a0 ("ACPI/IORT: Add support for ARM SMMU platform devices creation")

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/acpi/arm64/iort.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index e0d2e6e6e40c..655407ad112e 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -828,7 +828,7 @@ static int __init iort_add_smmu_platform_device(struct acpi_iort_node *node)
 
 	pdev = platform_device_alloc(ops->name, PLATFORM_DEVID_AUTO);
 	if (!pdev)
-		return PTR_ERR(pdev);
+		return -ENOMEM;
 
 	count = ops->iommu_count_resources(node);
 
-- 
2.9.3