[libvirt] [PATCH v2 3/6] scsi: Adjust return value for virStorageBackendSCSINewLun

[John Ferlan]

Add a return -2 to differentiate that the failure was a result of a non
stable device path found or some other real error which would be messaged
in some manner.

Signed-off-by: John Ferlan <jferlan at redhat.com>
---
 src/storage/storage_backend_scsi.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/storage/storage_backend_scsi.c b/src/storage/storage_backend_scsi.c
index 58e7e6d..6def373 100644
--- a/src/storage/storage_backend_scsi.c
+++ b/src/storage/storage_backend_scsi.c
@@ -146,6 +146,16 @@ virStorageBackendSCSISerial(const char *dev)
 }
 
 
+/*
+ * Attempt to create a new LUN
+ *
+ * Returns:
+ *
+ *  0  => Success
+ *  -1 => Failure due to some sort of OOM or other fatal issue found when
+ *        attempting to get/update information about a found volume
+ *  -2 => Failure to find a stable path
+ */
 static int
 virStorageBackendSCSINewLun(virStoragePoolObjPtr pool,
                             uint32_t host ATTRIBUTE_UNUSED,
@@ -202,7 +212,7 @@ virStorageBackendSCSINewLun(virStoragePoolObjPtr pool,
         VIR_DEBUG("No stable path found for '%s' in '%s'",
                   devpath, pool->def->target.path);
 
-        retval = -1;
+        retval = -2;
         goto free_vol;
     }
 
-- 
2.1.0