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drm/ttm: once more fix ttm_buffer_object_transfer

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When the mutex is locked just in the moment we copy it we end up with a
warning that we release a locked mutex.

Fix this by properly reinitializing the mutex.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
CC: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2017-10-30 14:57:43 +01:00 committed by Alex Deucher
parent b73b6e8094
commit 4d98e5ee60
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/ttm/ttm_bo_util.c
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@ -474,6 +474,7 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo,
INIT_LIST_HEAD(&fbo->lru); INIT_LIST_HEAD(&fbo->lru);
INIT_LIST_HEAD(&fbo->swap); INIT_LIST_HEAD(&fbo->swap);
INIT_LIST_HEAD(&fbo->io_reserve_lru); INIT_LIST_HEAD(&fbo->io_reserve_lru);
mutex_init(&fbo->wu_mutex);
fbo->moving = NULL; fbo->moving = NULL;
drm_vma_node_reset(&fbo->vma_node); drm_vma_node_reset(&fbo->vma_node);
atomic_set(&fbo->cpu_writers, 0); atomic_set(&fbo->cpu_writers, 0);