1 files changed, 10 insertions, 13 deletions

diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 5ae1d497e5ed..d024442ee128 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -683,6 +683,7 @@ static struct zfcp_fsf_req *zfcp_fsf_alloc_noqtcb(mempool_t *pool)
         if (!req)
                 return NULL;
         memset(req, 0, sizeof(*req));
+        req->pool = pool;
         return req;
 }
 
@@ -769,28 +770,24 @@ static struct zfcp_fsf_req *zfcp_fsf_req_create(struct zfcp_adapter *adapter,
 static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
 {
         struct zfcp_adapter *adapter = req->adapter;
-        struct zfcp_qdio_queue *req_q = &adapter->req_q;
+        unsigned long flags;
         int idx;
 
         /* put allocated FSF request into hash table */
-        spin_lock(&adapter->req_list_lock);
+        spin_lock_irqsave(&adapter->req_list_lock, flags);
         idx = zfcp_reqlist_hash(req->req_id);
         list_add_tail(&req->list, &adapter->req_list[idx]);
-        spin_unlock(&adapter->req_list_lock);
+        spin_unlock_irqrestore(&adapter->req_list_lock, flags);
 
-        req->qdio_outb_usage = atomic_read(&req_q->count);
+        req->qdio_outb_usage = atomic_read(&adapter->req_q.count);
         req->issued = get_clock();
         if (zfcp_qdio_send(req)) {
-                /* Queues are down..... */
                 del_timer(&req->timer);
-                spin_lock(&adapter->req_list_lock);
-                zfcp_reqlist_remove(adapter, req);
-                spin_unlock(&adapter->req_list_lock);
-                /* undo changes in request queue made for this request */
-                atomic_add(req->sbal_number, &req_q->count);
-                req_q->first -= req->sbal_number;
-                req_q->first += QDIO_MAX_BUFFERS_PER_Q;
-                req_q->first %= QDIO_MAX_BUFFERS_PER_Q; /* wrap */
+                spin_lock_irqsave(&adapter->req_list_lock, flags);
+                /* lookup request again, list might have changed */
+                if (zfcp_reqlist_find_safe(adapter, req))
+                        zfcp_reqlist_remove(adapter, req);
+                spin_unlock_irqrestore(&adapter->req_list_lock, flags);
                 zfcp_erp_adapter_reopen(adapter, 0, 116, req);
                 return -EIO;
         }