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authorHonghui Zhang <honghui.zhang@mediatek.com>2016-06-08 17:50:44 +0800
committerJoerg Roedel <jroedel@suse.de>2016-06-21 11:36:19 +0200
commit9fec79df898602f5a20c0ab489bf9780aa98185d (patch)
tree301648e62a8b9564c6b1db7c1753bc4bb61480d7 /drivers/iommu/mtk_iommu.c
parent5edb56491d4812c42175980759da53388e5d86f5 (diff)
downloadlinux-9fec79df898602f5a20c0ab489bf9780aa98185d.tar.bz2
iommu/mediatek: Do not call of_node_put in mtk_iommu_of_xlate
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> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/mtk_iommu.c')
-rw-r--r--drivers/iommu/mtk_iommu.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index c3043d8754e3..493bd3e0f8db 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;