diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 2f3780b50723675e7e595a85298848d54f08f858..0e4370540786b40d2660894305df95a3d88ed4ed 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -1211,11 +1211,8 @@ static ssize_t pci_resource_io(struct file *filp, struct kobject *kobj,
 {
 	struct pci_dev *pdev = to_pci_dev(kobj_to_dev(kobj));
 	int bar = (unsigned long)attr->private;
-	struct resource *res;
 	unsigned long port = off;
 
-	res = &pdev->resource[bar];
-
 	port += pci_resource_start(pdev, bar);
 
 	if (port > pci_resource_end(pdev, bar))