From: Hanjun Guo guohanjun@huawei.com
[ 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... Signed-off-by: Hanjun Guo guohanjun@huawei.com Signed-off-by: Bjorn Helgaas bhelgaas@google.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pci/quirks.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 8f856657dac22..9129ccd593d10 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);