[Bugs] [Bug 1507896] New: glfs_init returns incorrect errno on faliure

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1507896

            Bug ID: 1507896
           Summary: glfs_init returns incorrect errno on faliure
           Product: GlusterFS
           Version: 3.12
         Component: libgfapi
          Severity: low
          Assignee: bugs at gluster.org
          Reporter: dchaplyg at redhat.com
        QA Contact: bugs at gluster.org
                CC: bugs at gluster.org



Description of problem: glfs_init called  with volume name prefixed by '/' 
returns -1 and sets errno to 0.


Version-Release number of selected component (if applicable): 3.12


How reproducible: always


Steps to Reproduce:
1. Create some gluster volume, for example 'test'
2. Try to call glfs_init with volume name '/test'

Actual results: glfs_init returns -1 and sets errno to 0. With logging enabled
it will log the following error: 
  E [MSGID: 101091] [graph.c:493:glusterfs_graph_prepare] 0-graph: glusterfs
graph settop failed

Expected results: glfs_init should set errno to some meaningful value and
correctly report volume name incorrectness.

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