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[165.124.184.136]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-7d45bd28d81sm98644a34.6.2026.02.04.21.24.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Feb 2026 21:24:31 -0800 (PST) From: Ziyi Guo To: Shengjiu Wang , Xiubo Li Cc: Fabio Estevam , Nicolin Chen , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Shawn Guo , Sascha Hauer , kernel@pengutronix.de, linux-sound@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Ziyi Guo Subject: [PATCH] ASoC: fsl: imx-rpmsg: use snd_soc_find_dai_with_mutex() in probe Date: Thu, 5 Feb 2026 05:24:29 +0000 Message-Id: <20260205052429.4046903-1-n7l8m4@u.northwestern.edu> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" imx_rpmsg_probe() calls snd_soc_find_dai() without holding client_mutex. However, snd_soc_find_dai() has lockdep_assert_held(&client_mutex) indicating callers must hold this lock, as the function iterates over the global component list. All other callers of snd_soc_find_dai() either hold client_mutex via the snd_soc_bind_card() path or use the snd_soc_find_dai_with_mutex() wrapper. Use snd_soc_find_dai_with_mutex() instead to fix the missing lock protection. Signed-off-by: Ziyi Guo Reviewed-by: Frank Li --- sound/soc/fsl/imx-rpmsg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/fsl/imx-rpmsg.c b/sound/soc/fsl/imx-rpmsg.c index 53f04d1f3280..76a8e68c1b62 100644 --- a/sound/soc/fsl/imx-rpmsg.c +++ b/sound/soc/fsl/imx-rpmsg.c @@ -145,7 +145,7 @@ static int imx_rpmsg_probe(struct platform_device *pdev) data->dai.ignore_pmdown_time =3D 1; =20 data->dai.cpus->dai_name =3D pdev->dev.platform_data; - cpu_dai =3D snd_soc_find_dai(data->dai.cpus); + cpu_dai =3D snd_soc_find_dai_with_mutex(data->dai.cpus); if (!cpu_dai) { ret =3D -EPROBE_DEFER; goto fail; --=20 2.34.1