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: 15b100d ("PCI: Claim ACS support for AMD southbridge devices")
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Hanjun Guo <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>

Author: guohanjun

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);