drm/tegra: debugfs cleanup cannot fail
The debugfs cleanup code never fails, so no error is returned. Therefore
the functions can all return void instead.
Signed-off-by: NThierry Reding <treding@nvidia.com>
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The debugfs cleanup code never fails, so no error is returned. Therefore
the functions can all return void instead.
Signed-off-by: NThierry Reding <treding@nvidia.com>