diff options
| author | Yang Yingliang | 2022-11-18 17:36:04 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2022-12-31 13:32:50 +0100 |
| commit | b0637f4bd426925f5c3a15e8f8e36190fe06bac5 (patch) | |
| tree | 402134618f741fcdfb0a4d5c7fd1e1f59a38024b /drivers/iommu/amd/iommu_v2.c | |
| parent | 26427454bebf3e59c2c9020d9f3a8478669d062b (diff) | |
iommu/amd: Fix pci device refcount leak in ppr_notifier()
[ Upstream commit 6cf0981c2233f97d56938d9d61845383d6eb227c ]
As comment of pci_get_domain_bus_and_slot() says, it returns
a pci device with refcount increment, when finish using it,
the caller must decrement the reference count by calling
pci_dev_put(). So call it before returning from ppr_notifier()
to avoid refcount leak.
Fixes: daae2d25a477 ("iommu/amd: Don't copy GCR3 table root pointer")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221118093604.216371-1-yangyingliang@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/iommu/amd/iommu_v2.c')
| -rw-r--r-- | drivers/iommu/amd/iommu_v2.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iommu/amd/iommu_v2.c b/drivers/iommu/amd/iommu_v2.c index 6a1f02c62dff..9f7fab49a5a9 100644 --- a/drivers/iommu/amd/iommu_v2.c +++ b/drivers/iommu/amd/iommu_v2.c @@ -587,6 +587,7 @@ out_drop_state: put_device_state(dev_state); out: + pci_dev_put(pdev); return ret; } |