Re: [PATCH] imx-drm: Fix probe failure

[Fabio Estevam]

On Wed, Aug 28, 2013 at 2:27 AM, Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> wrote:

> Nack. We need the references to prevent that encoders/connectors are
> (de)registered while the device is active. Simply dropping this code is
> no solution.

Any suggestions about a proper way of handling this?

After b5dc0d10, imx_drm_device_get() is called from
imx_drm_driver_load(), which increments the 'references' very early
now.

Then when we check:

    if (imxdrm->references) {
        ret = -EBUSY;
        goto err_busy;
    }

,it will fail always.

Not sure where is a proper location to increment/decrement
'imxdrm->references' though.

Tried to look at other drm drivers, but could not find examples on how
to deal with such references.

Regards,

Fabio Estevam
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