Re: [PATCH] drm/mediatek: Fix device node reference leak in mtk_dp_dt_parse()

From: Markus Schneider-Pargmann

Date: Wed Oct 29 2025 - 04:14:34 EST


On Wed Oct 29, 2025 at 8:23 AM CET, Miaoqian Lin wrote:
> The function mtk_dp_dt_parse() calls of_graph_get_endpoint_by_regs()
> to get the endpoint device node, but fails to call of_node_put() to release
> the reference when the function returns. This results in a device node
> reference leak.
>
> Fix this by adding the missing of_node_put() call before returning from
> the function.
>
> Found via static analysis and code review.
>
> Fixes: f70ac097a2cf ("drm/mediatek: Add MT8195 Embedded DisplayPort driver")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>

Reviewed-by: Markus Schneider-Pargmann <msp@xxxxxxxxxxxx>

Best
Markus

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