Re: [PATCH] drm/meson: Fix refcount leak in meson_encoder_hdmi_init

Martin Blumenstingl
2022-05-12T12:38:38Z

On Wed, May 11, 2022 at 7:41 AM Miaoqian Lin <linmq006@gmail.com> wrote:
>
> of_find_device_by_node() takes reference, we should use put_device()
> to release it when not need anymore.
> Add missing put_device() in error path to avoid refcount
> leak.
>
> Fixes: 0af5e0b41110 ("drm/meson: encoder_hdmi: switch to bridge DRM_BRIDGE_ATTACH_NO_CONNECTOR")
> Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

Thanks for sending this patch!

Neil, while reviewing this I noticed that on module unload we're also
not calling put_device().
This note doesn't affect this patch - but I am wondering if we need to
put that put_device() during module unload on our TODO-list?

Best regards,
Martin