platform/qcom/camss/camss.c
@@ -1836,21 +1836,26 @@ static int camss_probe(struct platform_device *pdev)
}
}
- ret = camss_configure_pd(camss);
+ //ret = camss_configure_pd(camss);
+ ret = -17;
if (ret < 0) {
dev_err(dev, "Failed to configure power domains: %d\n",
ret);
- return ret;
+ goto err_configure_pd;
}
pm_runtime_enable(dev);
return 0;
+err_configure_pd:
+ media_device_unregister(&camss->media_dev);
+ media_device_cleanup(&camss->media_dev);
err_register_subdevs:
camss_unregister_entities(camss);
err_register_entities:
v4l2_device_unregister(&camss->v4l2_dev);
err_cleanup:
+ v4l2_async_nf_unregister(&camss->notifier);
v4l2_async_nf_cleanup(&camss->notifier);
Hi all, I hit an issue that was already fixed with upstream commit 3d658980e6da ("media: camss: Do not attach an already attached power domain on MSM8916 platform") but this showed that some error handling is missing in camss_probe. After these errors the resources aren't cleaned up and e.g. sensor drivers still try to probe but fail quite badly because some things are NULL or whatever. [ 1.979098] qcom-camss fda0ac00.camss: Failed to configure power domains: -17 [ 1.989327] qcom-camss: probe of fda0ac00.camss failed with error -17 The commit causing this (or at least part of this) is 2f6f8af67203 ("media: camss: Refactor VFE power domain toggling") I tried a bit to add some error handling but in this case it now fails at v4l2_device_unregister_subdev -> media_device_unregister_entity -> __media_device_unregister_entity -> ida_free. And I'm not really sure how to fix (and honestly not super motivated). See following patch (formatting probably messed up, sorry). Maybe someone who knows a bit more about the driver or the media subsystem can fix this, thanks! Regards Luca return ret;