From patchwork Fri Feb 15 00:45:23 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnaldo Carvalho de Melo X-Patchwork-Id: 10814055 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3441413BF for ; Fri, 15 Feb 2019 00:48:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 217422EF93 for ; Fri, 15 Feb 2019 00:48:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1351E2EFB9; Fri, 15 Feb 2019 00:48:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id AA29F2EF93 for ; Fri, 15 Feb 2019 00:48:28 +0000 (UTC) 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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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=fnZF0XWQBVNEz/XdpodgNoMw+28C/os6dzr2iDI193U=; b=BRPeWUeFScnJFM PJoqClox1+rNZHA5DTdKDGw6rroUM39YNE5kt8Z1x8p6/6a+tR2UDAC2ylQiV5b+j9xltd9pFbR8F o0a/jFcOpwNP1oBp8FaVVfaq3qn7QtEIdxn1RBtzDRuvCmcESWm8FNgbbRu/OeK2FU+glmKClHbyX DBnrmBX2+O6OxAT63lEnj5QVwU5VV5HU61olNE9Q75Ffog5zJaPpaOfOn+y9xALufJCAR2znbJsbG wl3AoFKZ9AB9pEb4F/GI+Tf0xcelEoU04OeNuAZzQ9CUGQGV6afERnUnBsjltNsTrl5mr8mjOmgTT G6IrLbjXJZYmOkLJ8MIw==; 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 1guRg2-0005QI-M7; Fri, 15 Feb 2019 00:48:26 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1guRfN-0004f2-Rk for linux-arm-kernel@lists.infradead.org; Fri, 15 Feb 2019 00:47:51 +0000 Received: from quaco.ghostprotocols.net (unknown [189.40.103.31]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CBF36222D0; Fri, 15 Feb 2019 00:47:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1550191665; bh=59/Jn+pGlKT7JzKEMbIhX3CYYQrWCvYqFcJL9XeciIM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FvhgmoLipdaH5yxlQDP9ynnnPY0u5qu5F3dhw/fttZ6B/bnoTDQcOyXeBsgKQY/+T j2kK7SlFj6CJDvVgYGrHLPBaPfCr8axPhuxoBe9wIGgDmmp9kn/qhc6lfU6Wbwe6yK A4yfOZakYbHAn1Ag7SA1DjExUIhCZWi+ZS7lrl88= From: Arnaldo Carvalho de Melo To: Ingo Molnar Subject: [PATCH 27/43] perf cs-etm: Fix memory leak in error path Date: Thu, 14 Feb 2019 21:45:23 -0300 Message-Id: <20190215004539.23571-28-acme@kernel.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190215004539.23571-1-acme@kernel.org> References: <20190215004539.23571-1-acme@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190214_164745_998079_F43F5563 X-CRM114-Status: GOOD ( 12.40 ) 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: Arnaldo Carvalho de Melo , Mathieu Poirier , Suzuki K Poulouse , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Peter Zijlstra , Jiri Olsa , Leo Yan , Namhyung Kim , Jiri Olsa , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Mathieu Poirier Memory allocated for variable 't_params' isn't released properly in the error path of function cs_etm_queue *cs_etm__alloc_queue() and cs_etm__dump_event(), something this patch addresses. Signed-off-by: Mathieu Poirier Cc: Jiri Olsa Cc: Leo Yan Cc: Peter Zijlstra Cc: Suzuki K Poulouse Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/20190212171618.25355-6-mathieu.poirier@linaro.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/cs-etm.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index 3011c6cae531..aac07f950074 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -175,6 +175,10 @@ static void cs_etm__dump_event(struct cs_etm_auxtrace *etm, /* Use metadata to fill in trace parameters for trace decoder */ t_params = zalloc(sizeof(*t_params) * etm->num_cpu); + + if (!t_params) + return; + for (i = 0; i < etm->num_cpu; i++) { if (etm->metadata[i][CS_ETM_MAGIC] == __perf_cs_etmv3_magic) { u32 etmidr = etm->metadata[i][CS_ETM_ETMIDR]; @@ -206,14 +210,12 @@ static void cs_etm__dump_event(struct cs_etm_auxtrace *etm, /* Set decoder parameters to simply print the trace packets */ if (cs_etm__init_decoder_params(&d_params, NULL, CS_ETM_OPERATION_PRINT)) - return; + goto out_free; decoder = cs_etm_decoder__new(etm->num_cpu, &d_params, t_params); - zfree(&t_params); - if (!decoder) - return; + goto out_free; do { size_t consumed; @@ -228,6 +230,9 @@ static void cs_etm__dump_event(struct cs_etm_auxtrace *etm, } while (buffer_used < buffer->size); cs_etm_decoder__free(decoder); + +out_free: + zfree(&t_params); } static int cs_etm__flush_events(struct perf_session *session, @@ -379,7 +384,7 @@ static struct cs_etm_queue *cs_etm__alloc_queue(struct cs_etm_auxtrace *etm, { int i; struct cs_etm_decoder_params d_params; - struct cs_etm_trace_params *t_params; + struct cs_etm_trace_params *t_params = NULL; struct cs_etm_queue *etmq; size_t szp = sizeof(struct cs_etm_packet); @@ -461,8 +466,6 @@ static struct cs_etm_queue *cs_etm__alloc_queue(struct cs_etm_auxtrace *etm, etmq->decoder = cs_etm_decoder__new(etm->num_cpu, &d_params, t_params); - zfree(&t_params); - if (!etmq->decoder) goto out_free; @@ -475,6 +478,8 @@ static struct cs_etm_queue *cs_etm__alloc_queue(struct cs_etm_auxtrace *etm, cs_etm__mem_access)) goto out_free_decoder; + zfree(&t_params); + etmq->offset = 0; etmq->period_instructions = 0; @@ -483,6 +488,7 @@ static struct cs_etm_queue *cs_etm__alloc_queue(struct cs_etm_auxtrace *etm, out_free_decoder: cs_etm_decoder__free(etmq->decoder); out_free: + zfree(&t_params); zfree(&etmq->event_buf); zfree(&etmq->last_branch); zfree(&etmq->last_branch_rb);