From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756570Ab2EBTZt (ORCPT ); Wed, 2 May 2012 15:25:49 -0400 Received: from casper.infradead.org ([85.118.1.10]:56718 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756250Ab2EBTZU (ORCPT ); Wed, 2 May 2012 15:25:20 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Ulrich Drepper , Ulrich Drepper , David Ahern , Ingo Molnar , Paul Mackerras , Peter Zijlstra , Robert Richter , Stephane Eranian , Arnaldo Carvalho de Melo Subject: [PATCH 01/15] perf tools: Cleanup realloc use Date: Wed, 2 May 2012 16:24:48 -0300 Message-Id: <1335986702-9408-2-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.7.9.2.358.g22243 In-Reply-To: <1335986702-9408-1-git-send-email-acme@infradead.org> References: <1335986702-9408-1-git-send-email-acme@infradead.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ulrich Drepper The if branch is completely unnecessary since 'realloc' handles NULL pointers for the first parameter. This is really only a cleanup and submitted mainly to prevent proliferation of bad practices. Signed-off-by: Ulrich Drepper Cc: David Ahern Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Robert Richter Cc: Stephane Eranian Link: http://lkml.kernel.org/r/201204231304.q3ND4TFe020805@drepperk.user.openhosting.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/header.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 4c7c2d7..6e618ba 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -31,21 +31,16 @@ static const char **header_argv; int perf_header__push_event(u64 id, const char *name) { + struct perf_trace_event_type *nevents; + if (strlen(name) > MAX_EVENT_NAME) pr_warning("Event %s will be truncated\n", name); - if (!events) { - events = malloc(sizeof(struct perf_trace_event_type)); - if (events == NULL) - return -ENOMEM; - } else { - struct perf_trace_event_type *nevents; + nevents = realloc(events, (event_count + 1) * sizeof(*events)); + if (nevents == NULL) + return -ENOMEM; + events = nevents; - nevents = realloc(events, (event_count + 1) * sizeof(*events)); - if (nevents == NULL) - return -ENOMEM; - events = nevents; - } memset(&events[event_count], 0, sizeof(struct perf_trace_event_type)); events[event_count].event_id = id; strncpy(events[event_count].name, name, MAX_EVENT_NAME - 1); -- 1.7.9.2.358.g22243