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Diffstat (limited to 'drivers/s390/scsi/zfcp_fsf.c')
-rw-r--r--drivers/s390/scsi/zfcp_fsf.c10
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);