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| author | Hanjun Guo <guohanjun@huawei.com> | 2020-07-22 12:44:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-19 09:15:00 +0300 |
| commit | 88106a1039032405b738e8da72c4061cb79aa4e1 (patch) | |
| tree | 67ea1ddd57bcfff5c12d34cc87d47bb19947c35c /drivers/pci | |
| parent | c2a811630880eec62025b9975d5ce09e891f152f (diff) | |
| download | linux-88106a1039032405b738e8da72c4061cb79aa4e1.tar.xz | |
PCI: Release IVRS table in AMD ACS quirk
[ Upstream commit 090688fa4e448284aaa16136372397d7d10814db ]
The acpi_get_table() should be coupled with acpi_put_table() if the mapped
table is not used at runtime to release the table mapping.
In pci_quirk_amd_sb_acs(), IVRS table is just used for checking AMD IOMMU
is supported, not used at runtime, so put the table after using it.
Fixes: 15b100dfd1c9 ("PCI: Claim ACS support for AMD southbridge devices")
Link: https://lore.kernel.org/r/1595411068-15440-1-git-send-email-guohanjun@huawei.com
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/quirks.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 8f856657dac2..9129ccd593d1 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4334,6 +4334,8 @@ static int pci_quirk_amd_sb_acs(struct pci_dev *dev, u16 acs_flags) if (ACPI_FAILURE(status)) return -ENODEV; + acpi_put_table(header); + /* Filter out flags not applicable to multifunction */ acs_flags &= (PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_EC | PCI_ACS_DT); |