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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 C7C54C43331 for ; Mon, 11 Nov 2019 18:49:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 96DA9204FD for ; Mon, 11 Nov 2019 18:49:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573498166; bh=5JEQzBaVD+E8HXLBNVDBN6pR2xH6E2s/FT8ItNrMRsI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=uubJ3x9AZTJbbWF2Xyqi9OGdTzgTAW6h3WsQBxH0OPvE/PE7BMYnvo+izeZJ9g/yT KrUAdRVNii9m1mPk9CjkMgiWBkVbEwAmSDgu2Gbir6ftE0yIrGBAxqGGxsxCQRJ8U1 ogasBeNj3f9VxEv4jqXYoHak7ypL9Ev87n2YBva8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730278AbfKKStZ (ORCPT ); Mon, 11 Nov 2019 13:49:25 -0500 Received: from mail.kernel.org ([198.145.29.99]:42682 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729030AbfKKStW (ORCPT ); Mon, 11 Nov 2019 13:49:22 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 32747222C1; Mon, 11 Nov 2019 18:49:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573498162; bh=5JEQzBaVD+E8HXLBNVDBN6pR2xH6E2s/FT8ItNrMRsI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hZZEHobIMX45GvvjIv1zcpq0vTgwo9FW/SVM6QmJwSWHJdopMm5vq/vbkDyY8Kxz+ /A/vXxA8Geumy5+88yKyHFs9Gbwd+23U6rJDSFRR2KTI1dgyRSAWNHS53W7E412i9+ XueDKQ/XpnCqFpWOW2VwIb6AiRrT6I6xAp2czPkU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, John Keeping , Jiri Olsa , Alexander Shishkin , Konstantin Khlebnikov , Namhyung Kim , Peter Zijlstra , Arnaldo Carvalho de Melo , Andres Freund Subject: [PATCH 5.3 041/193] perf map: Use zalloc for map_groups Date: Mon, 11 Nov 2019 19:27:03 +0100 Message-Id: <20191111181503.990965328@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191111181459.850623879@linuxfoundation.org> References: <20191111181459.850623879@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: John Keeping commit ab6cd0e5276e24403751e0b3b8ed807738a8571f upstream. In the next commit we will add new fields to map_groups and we need these to be null if no value is assigned. The simplest way to achieve this is to request zeroed memory from the allocator. Signed-off-by: John Keeping Reviewed-by: Jiri Olsa Cc: Alexander Shishkin Cc: Konstantin Khlebnikov Cc: Namhyung Kim Cc: Peter Zijlstra Cc: john keeping Link: http://lkml.kernel.org/r/20190815100146.28842-1-john@metanate.com Signed-off-by: Arnaldo Carvalho de Melo Cc: Andres Freund Signed-off-by: Greg Kroah-Hartman --- tools/perf/util/map.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -637,7 +637,7 @@ bool map_groups__empty(struct map_groups struct map_groups *map_groups__new(struct machine *machine) { - struct map_groups *mg = malloc(sizeof(*mg)); + struct map_groups *mg = zalloc(sizeof(*mg)); if (mg != NULL) map_groups__init(mg, machine);