github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-02 11:33:28 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

iommu/mediatek: fix device leak on of_xlate()

Browse Source 
Make sure to drop the reference taken to the iommu platform device when
looking up its driver data during of_xlate().

Fixes: 0df4fabe20 ("iommu/mediatek: Add mt8173 IOMMU driver")
Cc: stable@vger.kernel.org	# 4.6
Acked-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Yong Wu <yong.wu@mediatek.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Johan Hovold 2025-10-20 06:53:09 +02:00 committed by Joerg Roedel
parent 80aa518452
commit b3f1ee1828
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/iommu/mtk_iommu.c
View File

@ -974,6 +974,8 @@ static int mtk_iommu_of_xlate(struct device *dev,
return -EINVAL;
dev_iommu_priv_set(dev, platform_get_drvdata(m4updev));
put_device(&m4updev->dev);
}
return iommu_fwspec_add_ids(dev, args->args, 1);