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ttm_bo_add_move_fence() invokes dma_fence_get(), which returns a reference of the specified dma_fence object to "fence" with increased refcnt. When ttm_bo_add_move_fence() returns, local variable "fence" becomes invalid, so the refcount should be decreased to keep refcount balanced. The reference counting issue happens in one exception handling path of ttm_bo_add_move_fence(). When no_wait_gpu flag is equals to true, the function forgets to decrease the refcnt increased by dma_fence_get(), causing a refcnt leak. Fix this issue by calling dma_fence_put() when no_wait_gpu flag is equals to true. Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn> Signed-off-by: Xin Tan <tanxin.ctf@gmail.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/370221/ Signed-off-by: Christian König <christian.koenig@amd.com> |
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| .. | ||
| Makefile | ||
| ttm_agp_backend.c | ||
| ttm_bo_manager.c | ||
| ttm_bo_util.c | ||
| ttm_bo_vm.c | ||
| ttm_bo.c | ||
| ttm_execbuf_util.c | ||
| ttm_memory.c | ||
| ttm_module.c | ||
| ttm_page_alloc_dma.c | ||
| ttm_page_alloc.c | ||
| ttm_tt.c | ||