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Message-ID: <87k34rj6by.fsf@sejong.aot.lge.com>
Date: Fri, 26 Sep 2014 14:31:29 +0900
From: Namhyung Kim <namhyung@...nel.org>
To: Taeung Song <treeze.taeung@...il.com>
Cc: Arnaldo Carvalho de Melo <acme@...nel.org>,
linux-kernel@...r.kernel.org, jolsa@...hat.com,
linux-perf-users@...r.kernel.org
Subject: Re: [PATCH] perf tools: modify error code when perf_session__new() fail.
Hi Taeung,
On Wed, 24 Sep 2014 10:33:37 +0900, Taeung Song wrote:
> Because perf_session__new() could fail for more reasons than just ENOMEM,
> I modified error code(ENOMEM or EINVAL) into -1.
>
> Signed-off-by: Taeung Song <treeze.taeung@...il.com>
Acked-by: Namhyung Kim <namhyung@...nel.org>
Thanks,
Namhyung
> ---
> tools/perf/builtin-annotate.c | 2 +-
> tools/perf/builtin-diff.c | 2 +-
> tools/perf/builtin-evlist.c | 2 +-
> tools/perf/builtin-inject.c | 2 +-
> tools/perf/builtin-kmem.c | 2 +-
> tools/perf/builtin-kvm.c | 4 ++--
> tools/perf/builtin-lock.c | 2 +-
> tools/perf/builtin-mem.c | 2 +-
> tools/perf/builtin-report.c | 2 +-
> tools/perf/builtin-script.c | 2 +-
> tools/perf/builtin-timechart.c | 2 +-
> tools/perf/builtin-top.c | 2 +-
> tools/perf/builtin-trace.c | 2 +-
> 13 files changed, 14 insertions(+), 14 deletions(-)
>
> diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
> index d4da692..be59394 100644
> --- a/tools/perf/builtin-annotate.c
> +++ b/tools/perf/builtin-annotate.c
> @@ -340,7 +340,7 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused)
>
> annotate.session = perf_session__new(&file, false, &annotate.tool);
> if (annotate.session == NULL)
> - return -ENOMEM;
> + return -1;
>
> symbol_conf.priv_size = sizeof(struct annotation);
> symbol_conf.try_vmlinux_path = true;
> diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
> index 190d0b6..a3ce19f 100644
> --- a/tools/perf/builtin-diff.c
> +++ b/tools/perf/builtin-diff.c
> @@ -683,7 +683,7 @@ static int __cmd_diff(void)
> d->session = perf_session__new(&d->file, false, &tool);
> if (!d->session) {
> pr_err("Failed to open %s\n", d->file.path);
> - ret = -ENOMEM;
> + ret = -1;
> goto out_delete;
> }
>
> diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c
> index 66e12f5..0f93f85 100644
> --- a/tools/perf/builtin-evlist.c
> +++ b/tools/perf/builtin-evlist.c
> @@ -28,7 +28,7 @@ static int __cmd_evlist(const char *file_name, struct perf_attr_details *details
>
> session = perf_session__new(&file, 0, NULL);
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> evlist__for_each(session->evlist, pos)
> perf_evsel__fprintf(pos, details, stdout);
> diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
> index 3a62b6b..de99ca1 100644
> --- a/tools/perf/builtin-inject.c
> +++ b/tools/perf/builtin-inject.c
> @@ -460,7 +460,7 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
> file.path = inject.input_name;
> inject.session = perf_session__new(&file, true, &inject.tool);
> if (inject.session == NULL)
> - return -ENOMEM;
> + return -1;
>
> if (symbol__init(&inject.session->header.env) < 0)
> return -1;
> diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
> index 2376218..f295141 100644
> --- a/tools/perf/builtin-kmem.c
> +++ b/tools/perf/builtin-kmem.c
> @@ -698,7 +698,7 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __maybe_unused)
>
> session = perf_session__new(&file, false, &perf_kmem);
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> symbol__init(&session->header.env);
>
> diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
> index f5d3ae4..fd84d47 100644
> --- a/tools/perf/builtin-kvm.c
> +++ b/tools/perf/builtin-kvm.c
> @@ -1062,7 +1062,7 @@ static int read_events(struct perf_kvm_stat *kvm)
> kvm->session = perf_session__new(&file, false, &kvm->tool);
> if (!kvm->session) {
> pr_err("Initializing perf session failed\n");
> - return -EINVAL;
> + return -1;
> }
>
> symbol__init(&kvm->session->header.env);
> @@ -1365,7 +1365,7 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
> */
> kvm->session = perf_session__new(&file, false, &kvm->tool);
> if (kvm->session == NULL) {
> - err = -ENOMEM;
> + err = -1;
> goto out;
> }
> kvm->session->evlist = kvm->evlist;
> diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
> index 92790ed..e7ec715 100644
> --- a/tools/perf/builtin-lock.c
> +++ b/tools/perf/builtin-lock.c
> @@ -862,7 +862,7 @@ static int __cmd_report(bool display_info)
> session = perf_session__new(&file, false, &eops);
> if (!session) {
> pr_err("Initializing perf session failed\n");
> - return -ENOMEM;
> + return -1;
> }
>
> symbol__init(&session->header.env);
> diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
> index 8b4a87f..24db6ff 100644
> --- a/tools/perf/builtin-mem.c
> +++ b/tools/perf/builtin-mem.c
> @@ -124,7 +124,7 @@ static int report_raw_events(struct perf_mem *mem)
> &mem->tool);
>
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> if (mem->cpu_list) {
> ret = perf_session__cpu_bitmap(session, mem->cpu_list,
> diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
> index 8c0b3f2..ac145fa 100644
> --- a/tools/perf/builtin-report.c
> +++ b/tools/perf/builtin-report.c
> @@ -720,7 +720,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
> repeat:
> session = perf_session__new(&file, false, &report.tool);
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> if (report.queue_size) {
> ordered_events__set_alloc_size(&session->ordered_events,
> diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
> index 02dce92..b9b9e58 100644
> --- a/tools/perf/builtin-script.c
> +++ b/tools/perf/builtin-script.c
> @@ -1744,7 +1744,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
>
> session = perf_session__new(&file, false, &script.tool);
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> if (header || header_only) {
> perf_session__fprintf_info(session, stdout, show_full_info);
> diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
> index 48eea6c..35b425b 100644
> --- a/tools/perf/builtin-timechart.c
> +++ b/tools/perf/builtin-timechart.c
> @@ -1605,7 +1605,7 @@ static int __cmd_timechart(struct timechart *tchart, const char *output_name)
> int ret = -EINVAL;
>
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> symbol__init(&session->header.env);
>
> diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
> index e13864b..a70a551 100644
> --- a/tools/perf/builtin-top.c
> +++ b/tools/perf/builtin-top.c
> @@ -929,7 +929,7 @@ static int __cmd_top(struct perf_top *top)
>
> top->session = perf_session__new(NULL, false, NULL);
> if (top->session == NULL)
> - return -ENOMEM;
> + return -1;
>
> machines__set_symbol_filter(&top->session->machines, symbol_filter);
>
> diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
> index a9e96ff..aa5f1c9 100644
> --- a/tools/perf/builtin-trace.c
> +++ b/tools/perf/builtin-trace.c
> @@ -2245,7 +2245,7 @@ static int trace__replay(struct trace *trace)
>
> session = perf_session__new(&file, false, &trace->tool);
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> if (symbol__init(&session->header.env) < 0)
> goto out;
--
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