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iommu/qcom: Simplify a test in 'qcom_iommu_add_device()'

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'iommu_group_get_for_dev()' never returns NULL, so this test can be
simplified a bit.

This way, the test is consistent with all other calls to
'iommu_group_get_for_dev()'.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Christophe JAILLET 2019-09-16 22:29:36 +02:00 committed by Joerg Roedel
parent 4f5cafb5cb
commit da6b05dce2
1 changed files with 2 additions and 2 deletions
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4
drivers/iommu/qcom_iommu.c
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@ -539,8 +539,8 @@ static int qcom_iommu_add_device(struct device *dev)
}
group = iommu_group_get_for_dev(dev);
if (IS_ERR_OR_NULL(group))
return PTR_ERR_OR_ZERO(group);
if (IS_ERR(group))
return PTR_ERR(group);
iommu_group_put(group);
iommu_device_link(&qcom_iommu->iommu, dev);