修改GPIO导出默认初始值

hc

2024-10-16 50a212ec906f7524620675f0c57357691c26c81f

 kernel/drivers/gpu/drm/mediatek/mtk_drm_drv.c
..
..
@@ -378,6 +378,7 @@
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 err_deinit:
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 	mtk_drm_kms_deinit(drm);
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 err_free:
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+	private->drm = NULL;
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 	drm_dev_put(drm);
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 	return ret;
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 }