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| author | Wentao Liang <vulab@iscas.ac.cn> | 2026-09-16 17:42:29 +0000 |
|---|---|---|
| committer | Chun-Kuang Hu <chunkuang.hu@kernel.org> | 2026-10-01 22:52:44 +0000 |
| commit | 2af45da333bdd7be2666688a0f861e0750e40e49 (patch) | |
| tree | b4516198d9d529a9c02d67bcf8be3ae5aef90a8b | |
| parent | 3753e34b73fcbe2a2edbe984614a008a261697ef (diff) | |
| download | linux-stable-2af45da333bdd7be2666688a0f861e0750e40e49.tar.gz linux-stable-2af45da333bdd7be2666688a0f861e0750e40e49.zip | |
drm/mediatek: Fix runtime PM leak in mtk_hdmi_ddc_v2_probe()
pm_runtime_get_sync() unconditionally bumps the usage counter, but
nothing puts it back when devm_i2c_add_adapter() fails, leaving the DDC
runtime-resumed after a failed probe. Drop the reference on that error
path.
Fixes: 8d0f79886273 ("drm/mediatek: Introduce HDMI/DDC v2 for MT8195/MT8188")
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20260916174229.2088824-1-vulab@iscas.ac.cn/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_hdmi_ddc_v2.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_ddc_v2.c b/drivers/gpu/drm/mediatek/mtk_hdmi_ddc_v2.c index 31e81a6de..1ec973d3f 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi_ddc_v2.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi_ddc_v2.c @@ -376,8 +376,10 @@ static int mtk_hdmi_ddc_v2_probe(struct platform_device *pdev) pm_runtime_get_sync(dev); ret = devm_i2c_add_adapter(dev, &ddc->adap); - if (ret < 0) + if (ret < 0) { + pm_runtime_put_noidle(dev); return dev_err_probe(dev, ret, "Cannot add DDC I2C adapter\n"); + } platform_set_drvdata(pdev, ddc); return 0; |