3.16.54-rc1 review patch. If anyone has any objections, please let me know.
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From: Christian König christian.koenig@amd.com
commit 4d98e5ee6084f6d7bc578c5d5f86de7156aaa4cb upstream.
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 Signed-off-by: Alex Deucher alexander.deucher@amd.com [bwh: Backported to 3.16: adjust context] Signed-off-by: Ben Hutchings ben@decadent.org.uk --- drivers/gpu/drm/ttm/ttm_bo_util.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -463,6 +463,7 @@ static int ttm_buffer_object_transfer(st INIT_LIST_HEAD(&fbo->lru); INIT_LIST_HEAD(&fbo->swap); INIT_LIST_HEAD(&fbo->io_reserve_lru); + mutex_init(&fbo->wu_mutex); drm_vma_node_reset(&fbo->vma_node); atomic_set(&fbo->cpu_writers, 0);