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

From: Dinghao Liu
Date: Wed May 20 2020 - 06:36:28 EST


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.liu@xxxxxxxxxx>
---
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