[SCSI] Don't attempt to send extended INQUIRY command if skip_vpd_pages is set

If a device has the skip_vpd_pages flag set we should simply fail the
scsi_get_vpd_page() call.

Signed-off-by: Martin K. Petersen <[e-mail]>
Acked-by: Alan Stern <[e-mail]>
Tested-by: Stuart Foster <[e-mail]>
Cc: [e-mail]
Signed-off-by: James Bottomley <[e-mail]>

drivers/scsi/scsi.c

···
 {
 	int i, result;
 
+	if (sdev->skip_vpd_pages)
+		goto fail;
+
 	/* Ask for all the pages supported by this device */
 	result = scsi_vpd_inquiry(sdev, buf, 0, buf_len);
 	if (result)