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mcctrl: fix access to uninitialized usrdata->cpu_topology_list

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Change-Id: I25a9182b9b470bb069f4f755a67fb50b88817cd2
This commit is contained in:
Masamichi Takagi
2021-01-28 17:31:36 +09:00
parent aa3d4ba7bd
commit 1f9fbe82db
1 changed files with 10 additions and 3 deletions
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13
executer/kernel/mcctrl/ikc.c
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@ -536,9 +536,6 @@ int prepare_ikc_channels(ihk_os_t os)
usrdata->os = os;
ihk_host_os_set_usrdata(os, usrdata);
ihk_ikc_listen_port(os, &lp_ikc2linux);
ihk_ikc_listen_port(os, &lp_ikc2mckernel);
init_waitqueue_head(&usrdata->wq_procfs);
mutex_init(&usrdata->reserve_lock);
mutex_init(&usrdata->part_exec_lock);
@ -555,6 +552,16 @@ int prepare_ikc_channels(ihk_os_t os)
INIT_LIST_HEAD(&usrdata->wakeup_descs_list);
spin_lock_init(&usrdata->wakeup_descs_lock);
/* ihk_ikc_listen_port should be performed after
* usrdata->cpu_topology_list is initialized because the
* function enables syscall_packet_handler which accesses
* the list (the call path is sysfsm_packet_handler -->
* sysfsm_work_main --> sysfsm_setup --> setup_sysfs_files
* --> setup_cpus_sysfs_files).
*/
ihk_ikc_listen_port(os, &lp_ikc2linux);
ihk_ikc_listen_port(os, &lp_ikc2mckernel);
return 0;
error: