pci: fix a panic in pcie_aspm_init_link_state

index 24f049e..2e8eb86 100644
@@ -500,9 +500,6 @@ static int pcie_aspm_sanity_check(struct pci_dev *pdev)
 	int pos;
 	u32 reg32;
 
-	if (aspm_disabled)
-		return 0;
-
 	/*
 	 * Some functions in a slot might not all be PCIe functions,
 	 * very strange. Disable ASPM for the whole slot

@@ -566,7 +563,11 @@ static struct pcie_link_state *alloc_pcie_link_state(struct pci_dev *pdev)
 void pcie_aspm_init_link_state(struct pci_dev *pdev)
 {
 	struct pcie_link_state *link;
-	int blacklist = !!pcie_aspm_sanity_check(pdev);
+	int blacklist;
+
+	if (aspm_disabled)
+		return;
+	blacklist = !!pcie_aspm_sanity_check(pdev);
 
 	if (!pci_is_pcie(pdev) || pdev->link_state)
 		return;