diff options
| author | Hanjun Guo <guohanjun@huawei.com> | 2020-07-22 17:44:28 +0800 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2020-07-29 18:05:13 -0500 |
| commit | 090688fa4e448284aaa16136372397d7d10814db (patch) | |
| tree | 07ca1f2cc6780a39921e8186223f33797fa1313e /drivers | |
| parent | 45beb31d3afb651bb5c41897e46bd4fa9980c51c (diff) | |
| download | linux-090688fa4e448284aaa16136372397d7d10814db.tar.bz2 | |
PCI: Release IVRS table in AMD ACS quirk
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>
Diffstat (limited to 'drivers')
| -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 052efeb9f053..2456a1950a8a 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -4409,6 +4409,8 @@ 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); |