From: Cyril Roelandt <tipecaml@gmail.com>
To: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Cc: Cyril Roelandt <tipecaml@gmail.com>,
joro@8bytes.org, iommu@lists.linux-foundation.org
Subject: [PATCH 2/5] iommu: remove redundant NULL check before dma_ops_domain_free().
Date: Tue, 12 Feb 2013 05:01:50 +0100 [thread overview]
Message-ID: <1360641713-24895-3-git-send-email-tipecaml@gmail.com> (raw)
In-Reply-To: <1360641713-24895-1-git-send-email-tipecaml@gmail.com>
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
next prev parent reply other threads:[~2013-02-12 4:11 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-12 4:01 [PATCH 0/5] Remove redundant NULL checks Cyril Roelandt
2013-02-12 4:01 ` [PATCH 1/5] radeon: Remove redundant NULL check before radeon_i2c_destroy() Cyril Roelandt
2013-02-12 4:01 ` Cyril Roelandt [this message]
2013-02-13 11:13 ` [PATCH 2/5] iommu: remove redundant NULL check before dma_ops_domain_free() Joerg Roedel
2013-02-12 4:01 ` [PATCH 3/5] staging: dgrp: remove redundant NULL check before unregister_dgrp_device() Cyril Roelandt
2013-02-12 4:01 ` [PATCH 4/5] staging: tidspbridge: remove redundant NULL check before delete_msg_mgr() Cyril Roelandt
2013-02-12 4:01 ` [PATCH 5/5] xen: remove redundant NULL check before unregister_and_remove_pcpu() Cyril Roelandt
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