diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index 8736e04fa73c..7c231557855f 100644
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -1399,7 +1399,7 @@ static int jmicron_pmos(struct sdhci_pci_chip *chip, int on)
 
 	ret = pci_read_config_byte(chip->pdev, 0xAE, &scratch);
 	if (ret)
-		return ret;
+		goto fail;
 
 	/*
 	 * Turn PMOS on [bit 0], set over current detection to 2.4 V
@@ -1410,7 +1410,10 @@ static int jmicron_pmos(struct sdhci_pci_chip *chip, int on)
 	else
 		scratch &= ~0x47;
 
-	return pci_write_config_byte(chip->pdev, 0xAE, scratch);
+	ret = pci_write_config_byte(chip->pdev, 0xAE, scratch);
+
+fail:
+	return pcibios_err_to_errno(ret);
 }
 
 static int jmicron_probe(struct sdhci_pci_chip *chip)
@@ -2327,7 +2330,7 @@ static int sdhci_pci_probe(struct pci_dev *pdev,
 
 	ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &slots);
 	if (ret)
-		return ret;
+		return pcibios_err_to_errno(ret);
 
 	slots = PCI_SLOT_INFO_SLOTS(slots) + 1;
 	dev_dbg(&pdev->dev, "found %d slot(s)\n", slots);
@@ -2336,7 +2339,7 @@ static int sdhci_pci_probe(struct pci_dev *pdev,
 
 	ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &first_bar);
 	if (ret)
-		return ret;
+		return pcibios_err_to_errno(ret);
 
 	first_bar &= PCI_SLOT_INFO_FIRST_BAR_MASK;