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ACPI/IORT: Fix the error return code in iort_add_smmu_platform_device() 

The function iort_add_smmu_platform_device() accidentally returns 0
(ie PTR_ERR(pdev) where pdev == NULL) if platform_device_alloc() fails;
fix the bug by returning a proper error value.

Fixes: 846f0e9e74 ("ACPI/IORT: Add support for ARM SMMU platform devices creation")
Acked-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
[lorenzo.pieralisi@arm.com: improved commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Dan Carpenter 2017-01-17 16:36:23 +03:00 committed by Will Deacon
parent 030abd8a5d
commit 5e5afa6cbd
1 changed files with 1 additions and 1 deletions
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2
drivers/acpi/arm64/iort.c
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@ -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);