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unreference buffer object should minus to 1 before final release #1947

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unreference buffer object should minus to 1 before final release #1947

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7 changes: 4 additions & 3 deletions media_softlet/linux/common/os/xe/mos_bufmgr_xe.c
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Original file line number Diff line number Diff line change
Expand Up @@ -801,7 +801,7 @@ drm_export void mos_bo_unreference_xe(struct mos_linux_bo *bo)
if (atomic_read(&bo_gem->ref_count) <= 0)
return;

if (atomic_dec_and_test(&bo_gem->ref_count))
if (atomic_add_unless(&bo_gem->ref_count, -1, 1))
{
/* release memory associated with this object */
/* Clear any left-over mappings */
Expand All @@ -811,9 +811,9 @@ drm_export void mos_bo_unreference_xe(struct mos_linux_bo *bo)
__mos_bo_mark_mmaps_incoherent_xe(bo);
}

DRMLISTDEL(&bo_gem->name_list);

mos_bo_free_xe(bo);
if (atomic_dec_and_test(&bo_gem->ref_count))
mos_bo_free_xe(bo);
}
}

Expand Down Expand Up @@ -3003,6 +3003,7 @@ mos_bo_free_xe(struct mos_linux_bo *bo)
mos_gem_bo_wait_rendering_xe(bo);

bufmgr_gem->m_lock.lock();
DRMLISTDEL(&bo_gem->name_list);

if (!bo_gem->is_userptr)
{
Expand Down