[SCSI] zfcp: Issue zfcp_fc_wka_port_put after FC CT BSG request

The patch "zfcp: Simplify handling of ct and els requests"
accidentally removed the call to zfcp_fc_wka_port_put for FC CT BSG
requests, thus not issuing a "close" request for the WKA ports.
Introduce a CT specific handler to first call zfcp_fc_wka_port_put and
then continue with the generic handler when returning from FC CT BSG
requests.

Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 43 insertions, 22 deletions

diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index ac5e3b7a3576..81d4375aa50e 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -677,6 +677,44 @@ static void zfcp_fc_ct_els_job_handler(void *data)
         job->job_done(job);
 }
 
+static struct zfcp_fc_wka_port *zfcp_fc_job_wka_port(struct fc_bsg_job *job)
+{
+        u32 preamble_word1;
+        u8 gs_type;
+        struct zfcp_adapter *adapter;
+
+        preamble_word1 = job->request->rqst_data.r_ct.preamble_word1;
+        gs_type = (preamble_word1 & 0xff000000) >> 24;
+
+        adapter = (struct zfcp_adapter *) job->shost->hostdata[0];
+
+        switch (gs_type) {
+        case FC_FST_ALIAS:
+                return &adapter->gs->as;
+        case FC_FST_MGMT:
+                return &adapter->gs->ms;
+        case FC_FST_TIME:
+                return &adapter->gs->ts;
+                break;
+        case FC_FST_DIR:
+                return &adapter->gs->ds;
+                break;
+        default:
+                return NULL;
+        }
+}
+
+static void zfcp_fc_ct_job_handler(void *data)
+{
+        struct fc_bsg_job *job = data;
+        struct zfcp_fc_wka_port *wka_port;
+
+        wka_port = zfcp_fc_job_wka_port(job);
+        zfcp_fc_wka_port_put(wka_port);
+
+        zfcp_fc_ct_els_job_handler(data);
+}
+
 static int zfcp_fc_exec_els_job(struct fc_bsg_job *job,
                                 struct zfcp_adapter *adapter)
 {
@@ -695,6 +733,7 @@ static int zfcp_fc_exec_els_job(struct fc_bsg_job *job,
         } else
                 d_id = ntoh24(job->request->rqst_data.h_els.port_id);
 
+        els->handler = zfcp_fc_ct_els_job_handler;
         return zfcp_fsf_send_els(adapter, d_id, els);
 }
 
@@ -702,35 +741,18 @@ static int zfcp_fc_exec_ct_job(struct fc_bsg_job *job,
                                struct zfcp_adapter *adapter)
 {
         int ret;
-        u8 gs_type;
         struct zfcp_fsf_ct_els *ct = job->dd_data;
         struct zfcp_fc_wka_port *wka_port;
-        u32 preamble_word1;
 
-        preamble_word1 = job->request->rqst_data.r_ct.preamble_word1;
-        gs_type = (preamble_word1 & 0xff000000) >> 24;
-
-        switch (gs_type) {
-        case FC_FST_ALIAS:
-                wka_port = &adapter->gs->as;
-                break;
-        case FC_FST_MGMT:
-                wka_port = &adapter->gs->ms;
-                break;
-        case FC_FST_TIME:
-                wka_port = &adapter->gs->ts;
-                break;
-        case FC_FST_DIR:
-                wka_port = &adapter->gs->ds;
-                break;
-        default:
-                return -EINVAL; /* no such service */
-        }
+        wka_port = zfcp_fc_job_wka_port(job);
+        if (!wka_port)
+                return -EINVAL;
 
         ret = zfcp_fc_wka_port_get(wka_port);
         if (ret)
                 return ret;
 
+        ct->handler = zfcp_fc_ct_job_handler;
         ret = zfcp_fsf_send_ct(wka_port, ct, NULL);
         if (ret)
                 zfcp_fc_wka_port_put(wka_port);
@@ -752,7 +774,6 @@ int zfcp_fc_exec_bsg_job(struct fc_bsg_job *job)
 
         ct_els->req = job->request_payload.sg_list;
         ct_els->resp = job->reply_payload.sg_list;
-        ct_els->handler = zfcp_fc_ct_els_job_handler;
         ct_els->handler_data = job;
 
         switch (job->request->msgcode) {