android/android_kernel_asus_sm8350
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

iommu/exynos: add missing put_device() call in exynos_iommu_of_xlate()

Browse Source 
[ 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>
This commit is contained in:
Yu Kuai
2020-09-18 09:13:35 +08:00
committed by Greg Kroah-Hartman
parent 08e66c0c1c
commit eddeff708c
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/iommu/exynos-iommu.c
View File

@ -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);