Commit 461bfb3f authored by Marek Szyprowski's avatar Marek Szyprowski Committed by Will Deacon

iommu: fix initialization without 'add_device' callback

IOMMU drivers can be initialized from of_iommu helpers. Such drivers don't
need to provide device_add callbacks to operate properly, so there is no
need to fail initialization if the callback is missing.
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
parent 7eba1d51
......@@ -737,7 +737,7 @@ static int add_iommu_group(struct device *dev, void *data)
const struct iommu_ops *ops = cb->ops;
if (!ops->add_device)
return -ENODEV;
return 0;
WARN_ON(dev->iommu_group);
......
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