[PATCH] PCI: check pci_vpd_pci22_wait() return

[Greg Thelen]

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.

Signed-off-by: Greg Thelen <gthelen@xxxxxxxxxx>
---
 drivers/pci/access.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/pci/access.c b/drivers/pci/access.c
index 502610b..fdaa42a 100644
--- a/drivers/pci/access.c
+++ b/drivers/pci/access.c
@@ -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

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