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Message-Id: <20251229090432.3964848-1-shengjiu.wang@nxp.com> Date: Mon, 29 Dec 2025 17:04:32 +0800 From: Shengjiu Wang <shengjiu.wang@....com> To: broonie@...nel.org, kuninori.morimoto.gx@...esas.com, lgirdwood@...il.com, perex@...ex.cz, tiwai@...e.com, linux-sound@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH] ASoC: simple-card-utils: Check device node before overwrite direction Even the device node don't exist, the graph_util_parse_link_direction() will overwrite the playback_only and capture_only to be zero. Which cause the playback_only and capture_only are not correct, so check device node exist or not before update the value. Signed-off-by: Shengjiu Wang <shengjiu.wang@....com> --- sound/soc/generic/simple-card-utils.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index 355f7ec8943c..bdc02e85b089 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -1179,9 +1179,9 @@ void graph_util_parse_link_direction(struct device_node *np, bool is_playback_only = of_property_read_bool(np, "playback-only"); bool is_capture_only = of_property_read_bool(np, "capture-only"); - if (playback_only) + if (np && playback_only) *playback_only = is_playback_only; - if (capture_only) + if (np && capture_only) *capture_only = is_capture_only; } EXPORT_SYMBOL_GPL(graph_util_parse_link_direction); -- 2.34.1
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