diff options
| author | Philip Yang <Philip.Yang@amd.com> | 2021-06-21 18:51:26 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-06-30 00:18:23 -0400 |
| commit | dcdb4d904b4bd3078fe8d4d24b1658560d6078ef (patch) | |
| tree | 38ef0795334338ed1e836582a83beda65e77924b /drivers/gpu/drm/amd/amdkfd/kfd_process.c | |
| parent | 75ae84c89b136a5c0193ab7064b03cddfcebba39 (diff) | |
drm/amdkfd: fix sysfs kobj leak
3 cases of kobj leak, which causes memory leak:
kobj_type must have release() method to free memory from release
callback. Don't need NULL default_attrs to init kobj.
sysfs files created under kobj_status should be removed with kobj_status
as parent kobject.
Remove queue sysfs files when releasing queue from process MMU notifier
release callback.
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_process.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_process.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index 3147dc8bb051..cfc36fceac8a 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -451,13 +451,9 @@ static const struct sysfs_ops procfs_stats_ops = { .show = kfd_procfs_stats_show, }; -static struct attribute *procfs_stats_attrs[] = { - NULL -}; - static struct kobj_type procfs_stats_type = { .sysfs_ops = &procfs_stats_ops, - .default_attrs = procfs_stats_attrs, + .release = kfd_procfs_kobj_release, }; int kfd_procfs_add_queue(struct queue *q) @@ -946,9 +942,11 @@ static void kfd_process_wq_release(struct work_struct *work) sysfs_remove_file(p->kobj, &pdd->attr_vram); sysfs_remove_file(p->kobj, &pdd->attr_sdma); - sysfs_remove_file(p->kobj, &pdd->attr_evict); - if (pdd->dev->kfd2kgd->get_cu_occupancy != NULL) - sysfs_remove_file(p->kobj, &pdd->attr_cu_occupancy); + + sysfs_remove_file(pdd->kobj_stats, &pdd->attr_evict); + if (pdd->dev->kfd2kgd->get_cu_occupancy) + sysfs_remove_file(pdd->kobj_stats, + &pdd->attr_cu_occupancy); kobject_del(pdd->kobj_stats); kobject_put(pdd->kobj_stats); pdd->kobj_stats = NULL; |