PCI: check pci_vpd_pci22_wait() return

pci_vpd_pci22_write() calls pci_vpd_pci22_wait() after writing PCI_VPD_DATA and PCI_VPD_ADDR to wait for the VPD operation to complete. The result pci_vpd_pci22_wait() was not checked for error.

This change checks for error.

---
 drivers/pci/access.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

index 502610b..fdaa42a 100644
@@ -334,6 +334,8 @@ static ssize_t pci_vpd_pci22_write(struct pci_dev *dev, loff_t pos, size_t count
 		vpd->busy = true;
 		vpd->flag = 0;
 		ret = pci_vpd_pci22_wait(dev);
+		if (ret < 0)
+			break;
 
 		pos += sizeof(u32);
 	}

1.7.3.1

Applied the two return value fixes to linux-next, thanks.

Jesse Barnes, Intel Open Source Technology Center