[PATCH] drm/nouveau: fix runtime pm imbalance on error

[Dinghao Liu]

pm_runtime_get_sync() increments the runtime PM usage counter even
the call returns an error code. Thus a pairing decrement is needed
on the error handling path to keep the counter balanced.

Signed-off-by: Dinghao Liu <dinghao....@zju.edu.cn>
---
 drivers/gpu/drm/nouveau/nouveau_gem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c 
b/drivers/gpu/drm/nouveau/nouveau_gem.c
index f5ece1f94973..125cefbb6210 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -157,8 +157,8 @@ nouveau_gem_object_close(struct drm_gem_object *gem, struct 
drm_file *file_priv)
                        if (!WARN_ON(ret < 0 && ret != -EACCES)) {
                                nouveau_gem_object_unmap(nvbo, vma);
                                pm_runtime_mark_last_busy(dev);
-                               pm_runtime_put_autosuspend(dev);
                        }
+                       pm_runtime_put_autosuspend(dev);
                }
        }
        ttm_bo_unreserve(&nvbo->bo);
-- 
2.17.1