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0512-drm-ttm-once-more-fix-ttm_buffer_object_tr...
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File 0512-drm-ttm-once-more-fix-ttm_buffer_object_transfer.patch of Package drm.7971
From 5b1c8c96dfab3a15fafcbb573e98d17a12fbfcbc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com> Date: Mon, 30 Oct 2017 14:57:43 +0100 Subject: [PATCH] drm/ttm: once more fix ttm_buffer_object_transfer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- 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 @@ -473,6 +473,7 @@ 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); fbo->moving = NULL; drm_vma_node_reset(&fbo->vma_node); atomic_set(&fbo->cpu_writers, 0);
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