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-rw-r--r--arch/x86/pci/acpi.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 00e60de30328..5559dcaddd5e 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -140,7 +140,9 @@ static const struct dmi_system_id pci_crs_quirks[] __initconst = {
void __init pci_acpi_crs_quirks(void)
{
- if ((dmi_get_bios_year() < 2008) && (iomem_resource.end <= 0xffffffff))
+ int year = dmi_get_bios_year();
+
+ if (year >= 0 && year < 2008 && iomem_resource.end <= 0xffffffff)
pci_use_crs = false;
dmi_check_system(pci_crs_quirks);