Merge pull request #899 from rhc54/topic/cov

Silence some warnings and address Coverity issues

opal/mca/btl/tcp/btl_tcp.c

@@ -91,7 +91,7 @@ int mca_btl_tcp_add_procs( struct mca_btl_base_module_t* btl,
 
         OPAL_THREAD_LOCK(&tcp_proc->proc_lock);
 
-        for (int j = 0 ; j < tcp_proc->proc_endpoint_count ; ++j) {
+        for (int j = 0 ; j < (int)tcp_proc->proc_endpoint_count ; ++j) {
             tcp_endpoint = tcp_proc->proc_endpoints[j];
             if (tcp_endpoint->endpoint_btl == tcp_btl) {
                 existing_found = true;

opal/mca/btl/tcp/btl_tcp_proc.c

@@ -743,7 +743,6 @@ mca_btl_tcp_proc_t* mca_btl_tcp_proc_lookup(const opal_process_name_t *name)
     if (OPAL_UNLIKELY(NULL == proc)) {
         mca_btl_base_endpoint_t *endpoint;
         opal_proc_t *opal_proc;
-        int rc;
 
         BTL_VERBOSE(("adding tcp proc for unknown peer {.jobid = 0x%x, .vpid = 0x%x}",
                      name->jobid, name->vpid));
@@ -754,7 +753,7 @@ mca_btl_tcp_proc_t* mca_btl_tcp_proc_lookup(const opal_process_name_t *name)
         }
 
         /* try adding this proc to each btl until */
-        for (int i = 0 ; i < mca_btl_tcp_component.tcp_num_btls ; ++i) {
+        for (int i = 0 ; i < (int)mca_btl_tcp_component.tcp_num_btls ; ++i) {
             endpoint = NULL;
             (void) mca_btl_tcp_add_procs (&mca_btl_tcp_component.tcp_btls[i]->super, 1, &opal_proc,
                                           &endpoint, NULL);

opal/mca/pmix/base/pmix_base_fns.c

@@ -70,10 +70,12 @@ static void lookup_cbfunc(int status, opal_list_t *data, void *cbdata)
     cd->status = status;
     if (OPAL_SUCCESS == status && NULL != data) {
         opal_pmix_pdata_t *p = (opal_pmix_pdata_t*)opal_list_get_first(data);
-        if (NULL != p && p->value.type == cd->pdat->value.type) {
-            (void)opal_value_xfer(&cd->pdat->value, &p->value);
+        if (NULL != p) {
+            cd->pdat->proc = p->proc;
+            if (p->value.type == cd->pdat->value.type) {
+                (void)opal_value_xfer(&cd->pdat->value, &p->value);
+            }
         }
-        cd->pdat->proc = p->proc;
     }
     cd->active = false;
 }

orte/mca/oob/tcp/oob_tcp.c

@@ -594,7 +594,7 @@ static void recv_handler(int sd, short flg, void *cbdata)
             }
             CLOSE_THE_SOCKET(sd);
             ui64 = (uint64_t*)(&peer->name);
-            opal_hash_table_set_value_uint64(&mca_oob_tcp_module.peers, (*ui64), NULL);
+            (void)opal_hash_table_set_value_uint64(&mca_oob_tcp_module.peers, (*ui64), NULL);
             OBJ_RELEASE(peer);
         }
     }