PCI/AER: Use explicit register size for PCI_ERR_CAP

Use u32 for PCIe AER Capability register variable and name it "aercc"
(Advanced Error Capabilities and Control register, PCIe r6.1 sec 7.8.4.7)
instead of "temp".

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ilpo Järvinen <[email protected]>
[bhelgaas: make subject more specific and match similar previous patches]
Signed-off-by: Bjorn Helgaas <[email protected]>

Author: ij-intel

drivers/pci/pcie/aer.c

@@ -1210,7 +1210,7 @@ int aer_get_device_error_info(struct pci_dev *dev, struct aer_err_info *info)
 {
 	int type = pci_pcie_type(dev);
 	int aer = dev->aer_cap;
-	int temp;
+	u32 aercc;
 
 	/* Must reset in this function */
 	info->status = 0;
@@ -1241,8 +1241,8 @@ int aer_get_device_error_info(struct pci_dev *dev, struct aer_err_info *info)
 			return 0;
 
 		/* Get First Error Pointer */
-		pci_read_config_dword(dev, aer + PCI_ERR_CAP, &temp);
-		info->first_error = PCI_ERR_CAP_FEP(temp);
+		pci_read_config_dword(dev, aer + PCI_ERR_CAP, &aercc);
+		info->first_error = PCI_ERR_CAP_FEP(aercc);
 
 		if (info->status & AER_LOG_TLP_MASKS) {
 			info->tlp_header_valid = 1;