common/verbs: added a call to ompi_ibv_free_device_list.

the ompi_common_verbs_find_ports function had a call to
ompi_ibv_get_device_list, but not to ompi_ibv_free_device_list.

fixed by Alina, reviewed by Vasily/Mike.
cmr=v1.8:reviewer=ompi-rm1.8 

This commit was SVN r31200.

ompi/mca/common/verbs/common_verbs_find_ports.c

@@ -638,6 +638,7 @@ opal_list_t *ompi_common_verbs_find_ports(const char *if_include,
     }
 
     /* All done! */
+    ompi_ibv_free_device_list(devices);
     return port_list;
 
  err_free_port_list:
@@ -646,6 +647,7 @@ opal_list_t *ompi_common_verbs_find_ports(const char *if_include,
          item = opal_list_remove_first(port_list)) {
         OBJ_RELEASE(item);
     }
+    ompi_ibv_free_device_list(devices);
 
  err_free_argv:
     if (NULL != if_sanity_list) {