In the error handling of s3c_camif_probe, s3c_camif_unregister_subdev may be executed twice, one is from camif_unregister_media_entities. Although there is sanity check about the registration status, it is not good to call s3c_camif_unregister_subdev twice in the error handling code. Fix this by moving s3c_camif_unregister_subdev out of camif_unregister_media_entities, and add a s3c_camif_unregister_subdev in the s3c_camif_remove. Signed-off-by: Dongliang Mu <mudongliangabcd@xxxxxxxxx> --- drivers/media/platform/s3c-camif/camif-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/platform/s3c-camif/camif-core.c b/drivers/media/platform/s3c-camif/camif-core.c index e1d51fd3e700..ba91cf7d3ab0 100644 --- a/drivers/media/platform/s3c-camif/camif-core.c +++ b/drivers/media/platform/s3c-camif/camif-core.c @@ -292,7 +292,6 @@ static void camif_unregister_media_entities(struct camif_dev *camif) { camif_unregister_video_nodes(camif); camif_unregister_sensor(camif); - s3c_camif_unregister_subdev(camif); } /* @@ -524,6 +523,7 @@ static int s3c_camif_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); camif_clk_put(camif); + s3c_camif_unregister_subdev(camif); pdata->gpio_put(); return 0; -- 2.25.1