From patchwork Thu Oct 5 13:49:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Shurong X-Patchwork-Id: 13410100 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2096627ED1 for ; Thu, 5 Oct 2023 14:04:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=foxmail.com header.i=@foxmail.com header.b="ivbGpObT" X-Greylist: delayed 435 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Thu, 05 Oct 2023 07:03:36 PDT Received: from out203-205-221-242.mail.qq.com (out203-205-221-242.mail.qq.com [203.205.221.242]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 16DA759E6; Thu, 5 Oct 2023 07:03:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foxmail.com; s=s201512; t=1696514613; bh=SXOUgbldgZBCY3GyES22l+Ixl/lk+hf9+Aq9JS/F44U=; h=From:To:Cc:Subject:Date; b=ivbGpObTfpcXyvTA6pLrkKVYM8ddZpZLIkVIaEDUv+4b6FjjRZSAdcNZlsATIjqdk 6UgwiIQRZLoS+Lu5cp3PZht1bRkuAt4lNYy+LyYO4wSX9V9jQElNQgbsJs0vWG8xuq 0JLrHcH9CcmmjICvxGFqeBfA2XjHGiO2+cUGpaKQ= Received: from KernelDevBox.byted.org ([180.184.103.200]) by newxmesmtplogicsvrsza12-0.qq.com (NewEsmtp) with SMTP id C7005A1E; Thu, 05 Oct 2023 21:49:48 +0800 X-QQ-mid: xmsmtpt1696513788t2552ounz Message-ID: X-QQ-XMAILINFO: MILSKRzDrLPb9EuLXmTn57oGreBCkYaFwc9IUcG6/5HF5vHFojYNqHhnEx5ycG J2FoBqQxKuVm8bD5TlMpxToHTmBj3N0FQjHU/8vHoMtdHdOSLuixdQxVWyJ+QASvQbAEIbkvO4/j r8H3zEEUWGT6D2p5kIYAN+HnOUEi1LVD/hskoQvnIELONuoJpgGFylV/wLa6XQMUe6u3F4lSZ+LJ uk/Jv0sSJcmkNQ+u4ZsTsIVepEX1QcdbUJWKulmeY9O3p5u9rbe1lk+MICpeZJqVctfi5IwnXjTh FBJe3AqbZD7cyQ5M2BE+4mq8nDiRwGgxjPbCAQkzVQ6PkeyrvzTr2UkB8i0pE4A40r07HvrRVm6r 4rIvBSBj7OsXv+n7vei0du/773JvOUm4G+SRKlU6CMP7XZykKFlKkSnAcqF0sva20v+0+LhEEj8N s6kNU+GmOSEYFh8E+O/d9Y3dOF7J4WbU19Zn0kFPPGUpi9vWwmMNrYnO04iW/aDXI4FEwEzVHAt4 QekwZSY4LAfLvKyULVuzneot2gOTQE8zqwNMxYyoHN3yC/nl9h6k0XvqAkEPVCYmbvZnRPO9vPhV 7+73//LgD6yaYmcm6MtgAB7nq+E5dUaARkw4ej5nXbT5do34NKD8PLCLT4qIu50k4lPx3Sp+4jGK lkawqTtY9IAlLqSQX7txS6BqP02Cti421bKZ28iJN/4er0xIqJ0QlPhua+ZnJFcx0KYJh+TiblbM cZrOIdNEfj0mpvLx3yfxoMUu2xE4v0caVCFitQb4NJHmgrFqB7L/NKroOdjzAQKvawFmvn3ImT4P q+gd2Gm9MvdrvXW9vEKdJPd97/SC+sDM9Qk/kKORdaKJZmpekb5WRT+r1RoTEbK+intAVmIN22J9 NPyUDx1Sx0HtnWTfKxgReIK610bhXSe6uAZdcG+j4jAUXD0hxifiPyP/yN3HHl4ASwKvF4dseb58 Sn+yaI7fCm9bhDyfGCaD7GMi4qkt/MvwStO0GFPlboTnIWb8l8yznghXiqFvMQHXppFVc2kac= X-QQ-XMRINFO: M/715EihBoGSf6IYSX1iLFg= From: Zhang Shurong To: Thinh.Nguyen@synopsys.com Cc: gregkh@linuxfoundation.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Zhang Shurong Subject: [PATCH] usb: dwc3: fix possible object reference leak Date: Thu, 5 Oct 2023 21:49:46 +0800 X-OQ-MSGID: <20231005134946.2197459-1-zhang_shurong@foxmail.com> X-Mailer: git-send-email 2.30.2 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, HELO_DYNAMIC_IPADDR,RCVD_IN_DNSWL_BLOCKED,RDNS_DYNAMIC,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net The of_find_device_by_node takes a reference to the struct device when find the match device,we should release it when fail. Fix it by calling by calling platform_device_put when error returns. Signed-off-by: Zhang Shurong --- drivers/usb/dwc3/dwc3-imx8mp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/dwc3-imx8mp.c b/drivers/usb/dwc3/dwc3-imx8mp.c index a1e15f2fffdb..af5302c3f7a9 100644 --- a/drivers/usb/dwc3/dwc3-imx8mp.c +++ b/drivers/usb/dwc3/dwc3-imx8mp.c @@ -244,7 +244,7 @@ static int dwc3_imx8mp_probe(struct platform_device *pdev) IRQF_ONESHOT, dev_name(dev), dwc3_imx); if (err) { dev_err(dev, "failed to request IRQ #%d --> %d\n", irq, err); - goto depopulate; + goto err_device_put; } device_set_wakeup_capable(dev, true); @@ -252,6 +252,8 @@ static int dwc3_imx8mp_probe(struct platform_device *pdev) return 0; +err_device_put: + platform_device_put(dwc3_imx->dwc3); depopulate: of_platform_depopulate(dev); err_node_put: