Make sure to drop the reference to the device taken by
of_find_device_by_node() on driver unbind.
Signed-off-by: Wen Yang <yellowriver2...@hotmail.com>
Cc: Joerg Roedel <j...@8bytes.org>
Cc: iommu@lists.linux-foundation.org
Cc: linux-ker...@vger.kernel.org
---
drivers/iommu/ipmmu-vmsa.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index 7a4529c..cebf56d 100644
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -756,6 +756,9 @@ static int ipmmu_init_platform_device(struct device *dev,
fwspec->iommu_priv = platform_get_drvdata(ipmmu_pdev);
+ if (!fwspec->iommu_priv)
+ put_device(&ipmmu_pdev->dev);
+
return 0;
}
--
2.7.4
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