[LU-3203] check result of dt_trans_create() using IS_ERR()

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.4.0
• Affects Version/s: Lustre 2.4.0
• Labels: mdd
• Severity: 3
• Assignee: John Hammond
• Reporter: John Hammond

Description

Several calls to dt_trans_create() or its wrappers are not checking for error. Some functions may pass err ptrs to dt_trans_stop(). In local_oid_storage_init() the error path following failure in dt_trans_create() is incorrect.