diff options
Diffstat (limited to 'drivers/s390/scsi/zfcp_fsf.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_fsf.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 140186fe1d1e..6cb963a06777 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -426,9 +426,14 @@ static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) * or it has been dismissed due to a queue shutdown, this function * is called to process the completion status and trigger further * events related to the FSF request. + * Caller must ensure that the request has been removed from + * adapter->req_list, to protect against concurrent modification + * by zfcp_erp_strategy_check_fsfreq(). */ static void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) { + struct zfcp_erp_action *erp_action; + if (unlikely(zfcp_fsf_req_is_status_read_buffer(req))) { zfcp_fsf_status_read_handler(req); return; @@ -439,8 +444,9 @@ static void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) zfcp_fsf_fsfstatus_eval(req); req->handler(req); - if (req->erp_action) - zfcp_erp_notify(req->erp_action, 0); + erp_action = req->erp_action; + if (erp_action) + zfcp_erp_notify(erp_action, 0); if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) zfcp_fsf_req_free(req); |