averello/linux-stable-mirror
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2026-09-22 09:34:56 +02:00
Code Issues Packages Projects Releases Wiki Activity

iommu/mediatek-v1: fix device leak on probe_device()

Browse Source 
commit c77ad28bfe upstream.

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

Fixes: b17336c55d ("iommu/mediatek: add support for mtk iommu generation one HW")
Cc: stable@vger.kernel.org	# 4.8
Cc: Honghui Zhang <honghui.zhang@mediatek.com>
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold
2026-01-11 15:22:11 +01:00
committed by Greg Kroah-Hartman
parent 83a8e18f30
commit e7bcedf59b
1 changed files with 2 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/iommu/mtk_iommu_v1.c
+2
View File
@@ -420,6 +420,8 @@ static int mtk_iommu_v1_create_mapping(struct device *dev, struct of_phandle_arg
return -EINVAL;
dev_iommu_priv_set(dev, platform_get_drvdata(m4updev));
put_device(&m4updev->dev);
}
ret = iommu_fwspec_add_ids(dev, args->args, 1);