* [PATCH] iommu/mediatek: Do not call of_node_put in mtk_iommu_of_xlate
@ 2016-06-08 9:50 honghui.zhang at mediatek.com
2016-06-21 9:39 ` Joerg Roedel
0 siblings, 1 reply; 2+ messages in thread
From: honghui.zhang at mediatek.com @ 2016-06-08 9:50 UTC (permalink / raw)
To: linux-arm-kernel
From: Honghui Zhang <honghui.zhang@mediatek.com>
The device_node will be released in of_iommu_configure, it may be double
released if call of_node_put in mtk_iommu_of_xlate.
Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com>
---
drivers/iommu/mtk_iommu.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index c3043d8..493bd3e 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -455,7 +455,6 @@ static int mtk_iommu_of_xlate(struct device *dev, struct of_phandle_args *args)
if (!dev->archdata.iommu) {
/* Get the m4u device */
m4updev = of_find_device_by_node(args->np);
- of_node_put(args->np);
if (WARN_ON(!m4updev))
return -EINVAL;
--
1.8.1.1.dirty
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2016-06-08 9:50 [PATCH] iommu/mediatek: Do not call of_node_put in mtk_iommu_of_xlate honghui.zhang at mediatek.com
2016-06-21 9:39 ` Joerg Roedel
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