drm/ttm: fix dma_fence refcount imbalance on error path
authorLin Yi <teroincn@163.com>
Wed, 10 Apr 2019 02:23:34 +0000 (10:23 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 11 Apr 2019 15:02:21 +0000 (10:02 -0500)
commit543c364d8eeeb42c0edfaac9764f4e9f3d777ec1
tree383cf020fe70cecdfad507fd796c280ff5c4ea92
parent453393369dc9806d2455151e329c599684762428
drm/ttm: fix dma_fence refcount imbalance on error path

the ttm_bo_add_move_fence takes a reference to the struct dma_fence, but
failed to release it on the error path, leading to a memory leak.
add dma_fence_put before return when error occur.

Signed-off-by: Lin Yi <teroincn@163.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/ttm/ttm_bo.c