From a6eaa872c52a181ae9a290fd4e40c9df91166d7a Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 20 Oct 2025 06:53:05 +0200 Subject: [PATCH] iommu/apple-dart: fix device leak on of_xlate() Make sure to drop the reference taken to the iommu platform device when looking up its driver data during of_xlate(). Fixes: 46d1fb072e76 ("iommu/dart: Add DART iommu driver") Cc: stable@vger.kernel.org # 5.15 Cc: Sven Peter Acked-by: Robin Murphy Signed-off-by: Johan Hovold Signed-off-by: Joerg Roedel --- drivers/iommu/apple-dart.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/apple-dart.c b/drivers/iommu/apple-dart.c index b5848770ef482..83a5aabcd15d9 100644 --- a/drivers/iommu/apple-dart.c +++ b/drivers/iommu/apple-dart.c @@ -805,6 +805,8 @@ static int apple_dart_of_xlate(struct device *dev, struct apple_dart *cfg_dart; int i, sid; + put_device(&iommu_pdev->dev); + if (args->args_count != 1) return -EINVAL; sid = args->args[0]; -- 2.47.3