Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 4.14 25/30] drm/nouveau: Fix reference count leak in nouveau_connector_detect | Date | Fri, 21 Aug 2020 12:18:52 -0400 |
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From: Aditya Pakki <pakki001@umn.edu>
[ Upstream commit 990a1162986e8eff7ca18cc5a0e03b4304392ae2 ]
nouveau_connector_detect() calls pm_runtime_get_sync and in turn increments the reference count. In case of failure, decrement the ref count before returning the error.
Signed-off-by: Aditya Pakki <pakki001@umn.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/gpu/drm/nouveau/nouveau_connector.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 4a7d50a96d36f..b5c8219c54557 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -580,8 +580,10 @@ nouveau_connector_detect(struct drm_connector *connector, bool force) pm_runtime_get_noresume(dev->dev); } else { ret = pm_runtime_get_sync(dev->dev); - if (ret < 0 && ret != -EACCES) + if (ret < 0 && ret != -EACCES) { + pm_runtime_put_autosuspend(dev->dev); return conn_status; + } } nv_encoder = nouveau_connector_ddc_detect(connector); -- 2.25.1
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