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Tue, 10 May 2022 22:27:52 -0700 (PDT) Received: from localhost.localdomain ([202.120.234.246]) by smtp.googlemail.com with ESMTPSA id s12-20020a170902c64c00b0015e8d4eb2e6sm588632pls.304.2022.05.10.22.27.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 May 2022 22:27:51 -0700 (PDT) From: Miaoqian Lin To: Shengjiu Wang , Xiubo Li , Fabio Estevam , Nicolin Chen , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , NXP Linux Team , Ye Guojin , alsa-devel@alsa-project.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] ASoC: imx-hdmi: Fix refcount leak in imx_hdmi_probe Date: Wed, 11 May 2022 09:27:40 +0400 Message-Id: <20220511052740.46903-1-linmq006@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Cc: linmq006@gmail.com X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" of_find_device_by_node() takes reference, we should use put_device() to release it. when devm_kzalloc() fails, it doesn't have a put_device(), it will cause refcount leak. Add missing put_device() to fix this. Fixes: 6a5f850aa83a ("ASoC: fsl: Add imx-hdmi machine driver") Fixes: f670b274f7f6 ("ASoC: imx-hdmi: add put_device() after of_find_device_by_node()") Signed-off-by: Miaoqian Lin --- sound/soc/fsl/imx-hdmi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/fsl/imx-hdmi.c b/sound/soc/fsl/imx-hdmi.c index 929f69b758af..ec149dc73938 100644 --- a/sound/soc/fsl/imx-hdmi.c +++ b/sound/soc/fsl/imx-hdmi.c @@ -126,6 +126,7 @@ static int imx_hdmi_probe(struct platform_device *pdev) data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); if (!data) { ret = -ENOMEM; + put_device(&cpu_pdev->dev); goto fail; }