diff --git a/drivers/char/hw_random/amd-rng.c b/drivers/char/hw_random/amd-rng.c
index db3dd467194c..3f3fdf6ee3d5 100644
--- a/drivers/char/hw_random/amd-rng.c
+++ b/drivers/char/hw_random/amd-rng.c
@@ -142,8 +142,10 @@ static int __init mod_init(void)
 
 found:
 	err = pci_read_config_dword(pdev, 0x58, &pmbase);
-	if (err)
+	if (err) {
+		err = pcibios_err_to_errno(err);
 		goto put_dev;
+	}
 
 	pmbase &= 0x0000FF00;
 	if (pmbase == 0) {