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drm/nouveau: fix runtime pm imbalance on error 

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@zju.edu.cn>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Dinghao Liu 2020-05-20 18:36:04 +08:00 committed by Ben Skeggs
parent d7372dfb3f
commit d3faddc7dc
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/nouveau/nouveau_gem.c
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@ -159,8 +159,8 @@ 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);