Thread (9 messages) flat view 9 messages, 4 authors, 2022-02-08
STALE1652d

[PATCH 2/2] iommu/arm-smmu: Propagate errors from platform_get_irq()

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: 2021-12-23 13:01:07
Also in: linux-iommu, lkml
Subsystem: arm smmu drivers, iommu subsystem, the rest · Maintainers: Will Deacon, Joerg Roedel, Linus Torvalds

The driver overrides the error code returned by platform_get_irq() to
-ENODEV. Switch to propagating the error code upstream so that errors
such as -EPROBE_DEFER are handled.

Fixes: 9ec36cafe43b ("of/irq: do irq resolution in platform_get_irq")
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 drivers/iommu/arm/arm-smmu/arm-smmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c
index 4844cd075644..6cf5612efcda 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c
@@ -2129,7 +2129,7 @@ static int arm_smmu_device_probe(struct platform_device *pdev)
 		int irq = platform_get_irq(pdev, i);
 
 		if (irq < 0)
-			return -ENODEV;
+			return irq;
 		smmu->irqs[i] = irq;
 	}
 
-- 
2.17.1


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