diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 6e34498ec9f0269387c296e498174ccb29cbe3fb..78335efbbb742f8bad8b9ecd47d7e3e26b10a504 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -252,6 +252,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 			/* Address above 32-bit boundary; disable the BAR */
 			pci_write_config_dword(dev, pos, 0);
 			pci_write_config_dword(dev, pos + 4, 0);
+			res->flags |= IORESOURCE_UNSET;
 			region.start = 0;
 			region.end = sz64;
 			bar_disabled = true;