[PATCH -next] iommu/amd: Fix error return code in irq_remapping_alloc()

From: Wei Yongjun
Date: Wed Jul 27 2016 - 22:10:50 EST


Fix to return a negative error code from the alloc_irq_index() error
handling case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <weiyj.lk@xxxxxxxxx>
---
drivers/iommu/amd_iommu.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 96de97a..71e94f3 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -3886,6 +3886,7 @@ static int irq_remapping_alloc(struct irq_domain *domain, unsigned int virq,
}
if (index < 0) {
pr_warn("Failed to allocate IRTE\n");
+ ret = index;
goto out_free_parent;
}