[SCSI] ipr: Tolerate not finding PCI-X registers

Don't fail initialization of an adapter if the PCI-X registers
cannot be found since it may be a PCI-E adapter.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/ipr.c

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 0f1d654e..3913374 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -595,10 +595,8 @@
 {
 	int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
 
-	if (pcix_cmd_reg == 0) {
-		dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
-		return -EIO;
-	}
+	if (pcix_cmd_reg == 0)
+		return 0;
 
 	if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
 				 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
@@ -627,10 +625,6 @@
 			dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
 			return -EIO;
 		}
-	} else {
-		dev_err(&ioa_cfg->pdev->dev,
-			"Failed to setup PCI-X command register\n");
-		return -EIO;
 	}
 
 	return 0;