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| author |   Yu Kuai <yukuai3@huawei.com> | 2020-09-18 09:13:35 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-10-07 08:01:28 +0200 |
| commit | eddeff708c158c3f85ca497129473dd37654358e (patch) | |
| tree | ea4fc77ae57f6ebb1379c7a7582da7aa69fe0a49 | |
| parent | clk: samsung: exynos4: mark 'chipid' clock as CLK_IGNORE_UNUSED (diff) | |
| download | wireguard-linux-eddeff708c158c3f85ca497129473dd37654358e.tar.xz wireguard-linux-eddeff708c158c3f85ca497129473dd37654358e.zip | |
iommu/exynos: add missing put_device() call in exynos_iommu_of_xlate()
[ Upstream commit 1a26044954a6d1f4d375d5e62392446af663be7a ]
if of_find_device_by_node() succeed, exynos_iommu_of_xlate() doesn't have
a corresponding put_device(). Thus add put_device() to fix the exception
handling for this function implementation.
Fixes: aa759fd376fb ("iommu/exynos: Add callback for initializing devices from device tree")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20200918011335.909141-1-yukuai3@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/iommu/exynos-iommu.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index 9c94e16fb127..55ed857f804f 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -1299,13 +1299,17 @@ static int exynos_iommu_of_xlate(struct device *dev, return -ENODEV; data = platform_get_drvdata(sysmmu); - if (!data) + if (!data) { + put_device(&sysmmu->dev); return -ENODEV; + } if (!owner) { owner = kzalloc(sizeof(*owner), GFP_KERNEL); - if (!owner) + if (!owner) { + put_device(&sysmmu->dev); return -ENOMEM; + } INIT_LIST_HEAD(&owner->controllers); mutex_init(&owner->rpm_lock); |