diff --git a/drivers/net/wireless/realtek/rtw88/pci.c b/drivers/net/wireless/realtek/rtw88/pci.c
index 8a8d746d334944f795a848e9c45b3386f3d3a714..b9a5868a5da023ee5ef4bb93f0da53071b73d9e6 100644
--- a/drivers/net/wireless/realtek/rtw88/pci.c
+++ b/drivers/net/wireless/realtek/rtw88/pci.c
@@ -1102,6 +1102,7 @@ static int rtw_pci_io_mapping(struct rtw_dev *rtwdev,
 	len = pci_resource_len(pdev, bar_id);
 	rtwpci->mmap = pci_iomap(pdev, bar_id, len);
 	if (!rtwpci->mmap) {
+		pci_release_regions(pdev);
 		rtw_err(rtwdev, "failed to map pci memory\n");
 		return -ENOMEM;
 	}