From: Cyril Roelandt <tipecaml@gmail.com>
Date: Tue, 12 Feb 2013 04:01:50 +0000 (+0100)
Subject: iommu/amd: Remove redundant NULL check before dma_ops_domain_free().
X-Git-Tag: upstream/snapshot3+hdmi~5642^2^8
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=91457df7733564015f846c501424610318a5b85f;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

iommu/amd: Remove redundant NULL check before dma_ops_domain_free().

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>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index c1c74e0..f6f4a62 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;