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iommu: Delete a duplicate check in iommu_change_dev_def_domain() 

Function iommu_group_store_type() is the only caller of the static
function iommu_change_dev_def_domain() and has performed
"if (WARN_ON(!group))" detection before calling it. So the one here is
redundant.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210513075815.6382-1-thunder.leizhen@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Zhen Lei 2021-05-13 15:58:15 +08:00 committed by Joerg Roedel
parent 7154cbd31c
commit e86b041ffe
1 changed files with 0 additions and 3 deletions
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3
drivers/iommu/iommu.c
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@ -3059,9 +3059,6 @@ static int iommu_change_dev_def_domain(struct iommu_group *group,
int ret, dev_def_dom; int ret, dev_def_dom;
struct device *dev; struct device *dev;
if (!group)
return -EINVAL;
mutex_lock(&group->mutex); mutex_lock(&group->mutex);
if (group->default_domain != group->domain) { if (group->default_domain != group->domain) {