[PATCH 13/33] powerpc/dart: remove dead cleanup code in iommu_init_early_dart

Christoph Hellwig
2018-10-09T13:28:46Z

If dart_init failed we didn't have a chance to setup dma or controller
ops yet, so there is no point in resetting them.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
arch/powerpc/sysdev/dart_iommu.c | 11 +----------
1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 5ca3e22d0512..ce5dd2048f57 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -428,7 +428,7 @@ void __init iommu_init_early_dart(struct pci_controller_ops *controller_ops)

/* Initialize the DART HW */
if (dart_init(dn) != 0)
- goto bail;
+ return;

/* Setup bypass if supported */
if (dart_is_u4)
@@ -439,15 +439,6 @@ void __init iommu_init_early_dart(struct pci_controller_ops *controller_ops)

/* Setup pci_dma ops */
set_pci_dma_ops(&dma_iommu_ops);
- return;
-
- bail:
- /* If init failed, use direct iommu and null setup functions */
- controller_ops->dma_dev_setup = NULL;
- controller_ops->dma_bus_setup = NULL;
-
- /* Setup pci_dma ops */
- set_pci_dma_ops(&dma_nommu_ops);
}

#ifdef CONFIG_PM
--
2.19.0