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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 21F27C7618B for ; Mon, 29 Jul 2019 17:49:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EE93121655 for ; Mon, 29 Jul 2019 17:49:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=metanate.com header.i=@metanate.com header.b="gK5OQ1SW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727964AbfG2RtE (ORCPT ); Mon, 29 Jul 2019 13:49:04 -0400 Received: from dougal.metanate.com ([90.155.101.14]:17159 "EHLO metanate.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726627AbfG2RtA (ORCPT ); Mon, 29 Jul 2019 13:49:00 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=simple/simple; d=metanate.com; s=stronger; h=Content-Transfer-Encoding:MIME-Version:Message-Id:Date:Subject :Cc:To:From:Sender:Reply-To:Content-Type:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=ArcKfcvrR2IxMjJeccc6MrDKlauBdncErN/c3B3yI9o=; b=gK5OQ1SW34NR3x8PbuSNBlUX6j HJbJA6BlFZPz6piqk2RvbjJoEQbQzVni0EjKJFqf+IhPFPD5PKDCLdV4dJjC0T82vS/1fL7SL4Uvk 70hB+KD2lz4GmcDcFRGmRqAy/CLclEe2ysvR0xX2+Bqn6BCdxt3LvZLhz1UrARRa1ysIaFtWdZMR0 AfWie0uPLlTN/dmqZyJKwRVa/JxbamEEgDRgVY/Qs0tgDoTbd15PFOL3Yenf/4+paWRqif3pBtGwY R2BjiX7EB64JMX27BMIX5Sib7BA+VdaFPVK+nxebahu55H10s6AmR9HqxP7H8m39iZgxULAoCYo3A LP0zn4Yw==; Received: from dougal.metanate.com ([192.168.88.1] helo=localhost.localdomain) by shrek.metanate.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.90_1) (envelope-from ) id 1hs9OM-0001Uh-Tc; Mon, 29 Jul 2019 18:24:59 +0100 From: John Keeping Cc: John Keeping , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Alexander Shishkin , Jiri Olsa , Namhyung Kim , linux-kernel@vger.kernel.org Subject: [PATCH 1/2] perf map: use zalloc for map_groups Date: Mon, 29 Jul 2019 18:24:29 +0100 Message-Id: <20190729172430.14880-1-john@metanate.com> X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Authenticated: YES To: unlisted-recipients:; (no To-header on input) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- tools/perf/util/map.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index 668410b1d426..44b556812e4b 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -636,7 +636,7 @@ bool map_groups__empty(struct map_groups *mg) 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); -- 2.22.0