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drm/nouveau: fix runtime pm imbalance on error

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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 18:25:49 +08:00 committed by Ben Skeggs
parent 00583fbe80
commit d7372dfb3f
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/nouveau/nouveau_gem.c
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@ -76,8 +76,10 @@ nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv)
return ret;
ret = pm_runtime_get_sync(dev);
if (ret < 0 && ret != -EACCES)
if (ret < 0 && ret != -EACCES) {
pm_runtime_put_autosuspend(dev);
goto out;
}
ret = nouveau_vma_new(nvbo, vmm, &vma);
pm_runtime_mark_last_busy(dev);