From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754217Ab2IHLlN (ORCPT ); Sat, 8 Sep 2012 07:41:13 -0400 Received: from terminus.zytor.com ([198.137.202.10]:39523 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753572Ab2IHLlK (ORCPT ); Sat, 8 Sep 2012 07:41:10 -0400 Date: Sat, 8 Sep 2012 04:40:50 -0700 From: tip-bot for Namhyung Kim Message-ID: Cc: acme@redhat.com, linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@kernel.org, a.p.zijlstra@chello.nl, namhyung.kim@lge.com, namhyung@kernel.org, fweisbec@gmail.com, rostedt@goodmis.org, tglx@linutronix.de Reply-To: mingo@kernel.org, hpa@zytor.com, linux-kernel@vger.kernel.org, acme@redhat.com, a.p.zijlstra@chello.nl, namhyung.kim@lge.com, namhyung@kernel.org, fweisbec@gmail.com, rostedt@goodmis.org, tglx@linutronix.de In-Reply-To: <1346986187-5170-3-git-send-email-namhyung@kernel.org> References: <1346986187-5170-3-git-send-email-namhyung@kernel.org> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] tools lib traceevent: Get rid of die() from pevent_register_print_function Git-Commit-ID: 67ed939c9eb029c28057eb75de456a9d0e899fd4 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.6 (terminus.zytor.com [127.0.0.1]); Sat, 08 Sep 2012 04:40:56 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 67ed939c9eb029c28057eb75de456a9d0e899fd4 Gitweb: http://git.kernel.org/tip/67ed939c9eb029c28057eb75de456a9d0e899fd4 Author: Namhyung Kim AuthorDate: Fri, 7 Sep 2012 11:49:47 +0900 Committer: Arnaldo Carvalho de Melo CommitDate: Fri, 7 Sep 2012 12:15:31 -0300 tools lib traceevent: Get rid of die() from pevent_register_print_function If memory allocation for handler fails or argument type is not match, return gracefully instead of calling die(). Also add an new error code for the later case. Signed-off-by: Namhyung Kim Acked-by: Steven Rostedt Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1346986187-5170-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/traceevent/event-parse.c | 26 ++++++++++++++++++++------ tools/lib/traceevent/event-parse.h | 3 ++- 2 files changed, 22 insertions(+), 7 deletions(-) diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 17fd01d..4595aeb 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -5080,6 +5080,7 @@ int pevent_register_print_function(struct pevent *pevent, struct pevent_func_params *param; enum pevent_func_arg_type type; va_list ap; + int ret; func_handle = find_func_handler(pevent, name); if (func_handle) { @@ -5092,14 +5093,21 @@ int pevent_register_print_function(struct pevent *pevent, remove_func_handler(pevent, name); } - func_handle = malloc_or_die(sizeof(*func_handle)); + func_handle = malloc(sizeof(*func_handle)); + if (!func_handle) { + do_warning("Failed to allocate function handler"); + return PEVENT_ERRNO__MEM_ALLOC_FAILED; + } memset(func_handle, 0, sizeof(*func_handle)); func_handle->ret_type = ret_type; func_handle->name = strdup(name); func_handle->func = func; - if (!func_handle->name) - die("Failed to allocate function name"); + if (!func_handle->name) { + do_warning("Failed to allocate function name"); + free(func_handle); + return PEVENT_ERRNO__MEM_ALLOC_FAILED; + } next_param = &(func_handle->params); va_start(ap, name); @@ -5109,11 +5117,17 @@ int pevent_register_print_function(struct pevent *pevent, break; if (type < 0 || type >= PEVENT_FUNC_ARG_MAX_TYPES) { - warning("Invalid argument type %d", type); + do_warning("Invalid argument type %d", type); + ret = PEVENT_ERRNO__INVALID_ARG_TYPE; goto out_free; } - param = malloc_or_die(sizeof(*param)); + param = malloc(sizeof(*param)); + if (!param) { + do_warning("Failed to allocate function param"); + ret = PEVENT_ERRNO__MEM_ALLOC_FAILED; + goto out_free; + } param->type = type; param->next = NULL; @@ -5131,7 +5145,7 @@ int pevent_register_print_function(struct pevent *pevent, out_free: va_end(ap); free_func_handle(func_handle); - return -1; + return ret; } /** diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h index 863a0bb..3318963 100644 --- a/tools/lib/traceevent/event-parse.h +++ b/tools/lib/traceevent/event-parse.h @@ -351,7 +351,8 @@ enum pevent_flag { _PE(READ_ID_FAILED, "failed to read event id"), \ _PE(READ_FORMAT_FAILED, "failed to read event format"), \ _PE(READ_PRINT_FAILED, "failed to read event print fmt"), \ - _PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace") + _PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace"),\ + _PE(INVALID_ARG_TYPE, "invalid argument type") #undef _PE #define _PE(__code, __str) PEVENT_ERRNO__ ## __code