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| author | Yang Yingliang <yangyingliang@huawei.com> | 2022-12-01 07:01:25 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-12-02 13:45:32 +0300 |
| commit | 6927d352380797ddbee18631491ec428741696e2 (patch) | |
| tree | 563f48eead2d51af123511262616365ddc87d036 /arch | |
| parent | e65a6897be5e4939d477c4969a05e12d90b08409 (diff) | |
| download | linux-6927d352380797ddbee18631491ec428741696e2.tar.xz | |
iommu/vt-d: Fix PCI device refcount leak in prq_event_thread()
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 decrease
the reference count by calling pci_dev_put(). So call pci_dev_put() after
using the 'pdev' to avoid refcount leak.
Besides, if the 'pdev' is null or intel_svm_prq_report() returns error,
there is no need to trace this fault.
Fixes: 06f4b8d09dba ("iommu/vt-d: Remove unnecessary SVA data accesses in page fault path")
Suggested-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221119144028.2452731-1-yangyingliang@huawei.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions