diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index cce2f4c..3b5269a 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -240,6 +240,11 @@ static int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 	pci_read_config_dword(dev, pos, &l);
 	pci_write_config_dword(dev, pos, mask);
 	pci_read_config_dword(dev, pos, &sz);
+
+	/* sticky and non changable */
+	if (sz == l)
+		goto fail;
+
 	pci_write_config_dword(dev, pos, l);
 
 	/*