From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 538C3C18E7D for ; Wed, 22 May 2019 10:39:24 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 26C5820856 for ; Wed, 22 May 2019 10:39:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="fQ85jBfv" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 26C5820856 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=1swfMVklfbBveY3eATPNaDiSMz66qsaSZAIBJP9Chqo=; b=fQ85jBfv0m7Nv6pr1724MyggwZ O0iMpt1IzkeIyz1yho03reW9Osm6w79JJHT49XVmqYIhkWdwyn0vHAiw3BwE/sXlpJ56TCBg+Qo14 Oi2oDQBsGzP+l82n7pR/EyI2XW50G+ueJSno0L7+QPkojwbiKlUWXAlKjyiNzLAM29XGl6jddFvaP hWeGhe8xNUYtc/Oc8cRz04cZbRKmkwBDU3+Z28bm4HeqkbYxVbGaMSixo2oGEx+JnnM+yKnYkFcbp 1bxMS1ywnmqeB5qF91S8fctknbz1u7Oz04znBqBKpPzg7oLBrml25zaA7JjnqSpNXqfRfsHodTDyY u6VQazXA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hTOeS-0000mV-Ps; Wed, 22 May 2019 10:39:16 +0000 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70] helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hTOb6-0005G1-Gy for linux-arm-kernel@lists.infradead.org; Wed, 22 May 2019 10:36:03 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3D9DB169E; Wed, 22 May 2019 03:35:48 -0700 (PDT) Received: from en101.cambridge.arm.com (en101.cambridge.arm.com [10.1.196.93]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 2CF943F575; Wed, 22 May 2019 03:35:47 -0700 (PDT) From: Suzuki K Poulose To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 23/30] coresight: Add support for releasing platform specific data Date: Wed, 22 May 2019 11:34:56 +0100 Message-Id: <1558521304-27469-24-git-send-email-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1558521304-27469-1-git-send-email-suzuki.poulose@arm.com> References: <1558521304-27469-1-git-send-email-suzuki.poulose@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190522_033549_068070_0F9A495B X-CRM114-Status: GOOD ( 14.70 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: coresight@lists.linaro.org, linux-kernel@vger.kernel.org, mathieu.poirier@linaro.org, Suzuki K Poulose MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add a helper to clean up the platform specific data provided by the firmware. This will be later used for dropping the necessary references when we switch to the fwnode handles for tracking connections. Reviewed-by: Mathieu Poirier Signed-off-by: Suzuki K Poulose --- drivers/hwtracing/coresight/coresight-platform.c | 6 +++++- drivers/hwtracing/coresight/coresight-priv.h | 4 ++++ drivers/hwtracing/coresight/coresight.c | 3 +++ 3 files changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/hwtracing/coresight/coresight-platform.c b/drivers/hwtracing/coresight/coresight-platform.c index f500de6..53d6eed 100644 --- a/drivers/hwtracing/coresight/coresight-platform.c +++ b/drivers/hwtracing/coresight/coresight-platform.c @@ -17,6 +17,7 @@ #include #include +#include "coresight-priv.h" /* * coresight_alloc_conns: Allocate connections record for each output * port from the device. @@ -311,7 +312,7 @@ struct coresight_platform_data * coresight_get_platform_data(struct device *dev) { int ret = -ENOENT; - struct coresight_platform_data *pdata; + struct coresight_platform_data *pdata = NULL; struct fwnode_handle *fwnode = dev_fwnode(dev); if (IS_ERR_OR_NULL(fwnode)) @@ -329,6 +330,9 @@ coresight_get_platform_data(struct device *dev) if (!ret) return pdata; error: + if (!IS_ERR_OR_NULL(pdata)) + /* Cleanup the connection information */ + coresight_release_platform_data(pdata); return ERR_PTR(ret); } EXPORT_SYMBOL_GPL(coresight_get_platform_data); diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h index e0684d0..c216421 100644 --- a/drivers/hwtracing/coresight/coresight-priv.h +++ b/drivers/hwtracing/coresight/coresight-priv.h @@ -200,4 +200,8 @@ static inline void *coresight_get_uci_data(const struct amba_id *id) return 0; } +static inline void +coresight_release_platform_data(struct coresight_platform_data *pdata) +{} + #endif diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c index 96e1515..526141c 100644 --- a/drivers/hwtracing/coresight/coresight.c +++ b/drivers/hwtracing/coresight/coresight.c @@ -1250,6 +1250,8 @@ struct coresight_device *coresight_register(struct coresight_desc *desc) err_free_csdev: kfree(csdev); err_out: + /* Cleanup the connection information */ + coresight_release_platform_data(desc->pdata); return ERR_PTR(ret); } EXPORT_SYMBOL_GPL(coresight_register); @@ -1259,6 +1261,7 @@ void coresight_unregister(struct coresight_device *csdev) etm_perf_del_symlink_sink(csdev); /* Remove references of that device in the topology */ coresight_remove_conns(csdev); + coresight_release_platform_data(csdev->pdata); device_unregister(&csdev->dev); } EXPORT_SYMBOL_GPL(coresight_unregister); -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel