[PATCH 72/78] libmultipath: make vpd page 0x80 optional

[Hannes Reinecke <hare@suse.de>]

VPD page 0x80 is optional, so we shouldn't return an error if
the page is not present.

Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 libmultipath/discovery.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index d1a16e6..4582a20 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -1370,13 +1370,13 @@ scsi_ioctl_pathinfo (struct path * pp, int mask)
 		parent = udev_device_get_parent(parent);
 	}
 	if (!attr_path || pp->sg_id.host_no == -1)
-		return -ENODEV;
+		return 0;
 
 	if (get_vpd_sysfs(parent, 0x80, pp->serial, SERIAL_SIZE) > 0)
 		condlog(3, "%s: serial = %s",
 			pp->dev, pp->serial);
 
-	return strlen(pp->serial) ? 0 : -EIO;
+	return 0;
 }
 
 static int
-- 
1.8.4.5