media: driver: s3c_camif: move s3c_camif_unregister_subdev out of camif_unregister_me...

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@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/media/platform/s3c-camif/camif-core.c b/drivers/media/platform/s3c-camif/camif-core.c
index 32892ab..6e8ef86 100644 (file)
--- a/drivers/media/platform/s3c-camif/camif-core.c
+++ b/drivers/media/platform/s3c-camif/camif-core.c
@@ -291,7 +291,6 @@ static void camif_unregister_media_entities(struct camif_dev *camif)
 {
        camif_unregister_video_nodes(camif);
        camif_unregister_sensor(camif);
-       s3c_camif_unregister_subdev(camif);
 }
 
 /*
@@ -520,6 +519,7 @@ 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;