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Subject[PATCH 2/5] iommu: remove redundant NULL check before dma_ops_domain_free().
Date
dma_ops_domain_free on a NULL pointer is a no-op, so the NULL check in
amd_iommu_init_dma_ops() can be removed.

Signed-off-by: Cyril Roelandt <tipecaml@gmail.com>
---
drivers/iommu/amd_iommu.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index d33eaaf..98f555d 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -3187,8 +3187,7 @@ int __init amd_iommu_init_dma_ops(void)
free_domains:

for_each_iommu(iommu) {
- if (iommu->default_dom)
- dma_ops_domain_free(iommu->default_dom);
+ dma_ops_domain_free(iommu->default_dom);
}

return ret;
--
1.7.10.4


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