On Fri, 06 Sep 2024, Christophe JAILLET <christophe.jail...@wanadoo.fr> wrote:
> If component_add() fails, we need to undo a potential previous
> drm_edid_alloc() call.
>
> Add an error handling path and the missing drm_edid_free(), as already done
> in the reomve function.
See commit fe30fabf229f ("drm/imx: parallel-display: drop edid override
support").
BR,
Jani.
>
> Fixes: 42e08287a318 ("drm/ipuv3/parallel: convert to struct drm_edid")
> Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr>
> ---
> drivers/gpu/drm/imx/ipuv3/parallel-display.c | 10 +++++++++-
> 1 file changed, 9 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/imx/ipuv3/parallel-display.c
> b/drivers/gpu/drm/imx/ipuv3/parallel-display.c
> index 91d7808a2d8d..6d51203f7f0f 100644
> --- a/drivers/gpu/drm/imx/ipuv3/parallel-display.c
> +++ b/drivers/gpu/drm/imx/ipuv3/parallel-display.c
> @@ -350,7 +350,15 @@ static int imx_pd_probe(struct platform_device *pdev)
>
> platform_set_drvdata(pdev, imxpd);
>
> - return component_add(dev, &imx_pd_ops);
> + ret = component_add(dev, &imx_pd_ops);
> + if (ret)
> + goto free_edid;
> +
> + return 0;
> +
> +free_edid:
> + drm_edid_free(imxpd->drm_edid);
> + return ret;
> }
>
> static void imx_pd_remove(struct platform_device *pdev)
--
Jani Nikula, Intel
