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path: root/drivers/s390/scsi/zfcp_fsf.c
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Diffstat (limited to 'drivers/s390/scsi/zfcp_fsf.c')
-rw-r--r--drivers/s390/scsi/zfcp_fsf.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index d024442ee128..dc0367690405 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -930,8 +930,10 @@ struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id,
930 goto out; 930 goto out;
931 req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND, 931 req = zfcp_fsf_req_create(adapter, FSF_QTCB_ABORT_FCP_CMND,
932 req_flags, adapter->pool.fsf_req_abort); 932 req_flags, adapter->pool.fsf_req_abort);
933 if (IS_ERR(req)) 933 if (IS_ERR(req)) {
934 req = NULL;
934 goto out; 935 goto out;
936 }
935 937
936 if (unlikely(!(atomic_read(&unit->status) & 938 if (unlikely(!(atomic_read(&unit->status) &
937 ZFCP_STATUS_COMMON_UNBLOCKED))) 939 ZFCP_STATUS_COMMON_UNBLOCKED)))
@@ -1584,6 +1586,7 @@ static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req)
1584 wka_port->status = ZFCP_WKA_PORT_OFFLINE; 1586 wka_port->status = ZFCP_WKA_PORT_OFFLINE;
1585 break; 1587 break;
1586 case FSF_PORT_ALREADY_OPEN: 1588 case FSF_PORT_ALREADY_OPEN:
1589 break;
1587 case FSF_GOOD: 1590 case FSF_GOOD:
1588 wka_port->handle = header->port_handle; 1591 wka_port->handle = header->port_handle;
1589 wka_port->status = ZFCP_WKA_PORT_ONLINE; 1592 wka_port->status = ZFCP_WKA_PORT_ONLINE;
@@ -2113,18 +2116,21 @@ static inline void zfcp_fsf_trace_latency(struct zfcp_fsf_req *fsf_req)
2113 2116
2114static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req) 2117static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req)
2115{ 2118{
2116 struct scsi_cmnd *scpnt = req->data; 2119 struct scsi_cmnd *scpnt;
2117 struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *) 2120 struct fcp_rsp_iu *fcp_rsp_iu = (struct fcp_rsp_iu *)
2118 &(req->qtcb->bottom.io.fcp_rsp); 2121 &(req->qtcb->bottom.io.fcp_rsp);
2119 u32 sns_len; 2122 u32 sns_len;
2120 char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1]; 2123 char *fcp_rsp_info = (unsigned char *) &fcp_rsp_iu[1];
2121 unsigned long flags; 2124 unsigned long flags;
2122 2125
2123 if (unlikely(!scpnt))
2124 return;
2125
2126 read_lock_irqsave(&req->adapter->abort_lock, flags); 2126 read_lock_irqsave(&req->adapter->abort_lock, flags);
2127 2127
2128 scpnt = req->data;
2129 if (unlikely(!scpnt)) {
2130 read_unlock_irqrestore(&req->adapter->abort_lock, flags);
2131 return;
2132 }
2133
2128 if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) { 2134 if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ABORTED)) {
2129 set_host_byte(scpnt, DID_SOFT_ERROR); 2135 set_host_byte(scpnt, DID_SOFT_ERROR);
2130 set_driver_byte(scpnt, SUGGEST_RETRY); 2136 set_driver_byte(scpnt, SUGGEST_RETRY);
@@ -2442,8 +2448,10 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_adapter *adapter,
2442 goto out; 2448 goto out;
2443 req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags, 2449 req = zfcp_fsf_req_create(adapter, FSF_QTCB_FCP_CMND, req_flags,
2444 adapter->pool.fsf_req_scsi); 2450 adapter->pool.fsf_req_scsi);
2445 if (IS_ERR(req)) 2451 if (IS_ERR(req)) {
2452 req = NULL;
2446 goto out; 2453 goto out;
2454 }
2447 2455
2448 req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT; 2456 req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT;
2449 req->data = unit; 2457 req->data = unit;