From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1423224AbcBZXXV (ORCPT ); Fri, 26 Feb 2016 18:23:21 -0500 Received: from bombadil.infradead.org ([198.137.202.9]:36019 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755201AbcBZXSk (ORCPT ); Fri, 26 Feb 2016 18:18:40 -0500 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo , Adrian Hunter , Jiri Olsa , Namhyung Kim , Wang Nan Subject: [PATCH 01/19] perf tools: Use asprintf() for simple string formatting/allocation Date: Fri, 26 Feb 2016 20:18:13 -0300 Message-Id: <1456528711-13793-2-git-send-email-acme@kernel.org> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1456528711-13793-1-git-send-email-acme@kernel.org> References: <1456528711-13793-1-git-send-email-acme@kernel.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.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: Arnaldo Carvalho de Melo No need to use strbuf there, its just a simple alloc+formatting, which asprintf does just fine. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-6q6cxfhk8c8ypg3tfpo0i2iy@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/perf.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/tools/perf/perf.c b/tools/perf/perf.c index 144047c396f0..f6321194937f 100644 --- a/tools/perf/perf.c +++ b/tools/perf/perf.c @@ -454,11 +454,12 @@ static void handle_internal_command(int argc, const char **argv) static void execv_dashed_external(const char **argv) { - struct strbuf cmd = STRBUF_INIT; + char *cmd; const char *tmp; int status; - strbuf_addf(&cmd, "perf-%s", argv[0]); + if (asprintf(&cmd, "perf-%s", argv[0]) < 0) + goto do_die; /* * argv[0] must be the perf command, but the argv array @@ -467,7 +468,7 @@ static void execv_dashed_external(const char **argv) * restore it on error. */ tmp = argv[0]; - argv[0] = cmd.buf; + argv[0] = cmd; /* * if we fail because the command is not found, it is @@ -475,15 +476,16 @@ static void execv_dashed_external(const char **argv) */ status = run_command_v_opt(argv, 0); if (status != -ERR_RUN_COMMAND_EXEC) { - if (IS_RUN_COMMAND_ERR(status)) + if (IS_RUN_COMMAND_ERR(status)) { +do_die: die("unable to run '%s'", argv[0]); + } exit(-status); } errno = ENOENT; /* as if we called execvp */ argv[0] = tmp; - - strbuf_release(&cmd); + zfree(&cmd); } static int run_argv(int *argcp, const char ***argv) -- 2.5.0