diff options
| author | Masami Hiramatsu <mhiramat@kernel.org> | 2016-05-10 14:47:44 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-05-10 11:57:52 -0300 |
| commit | 11db4e29bb50442ecef2173f325b7be4e7790025 (patch) | |
| tree | 696636577cb3733f7ecbdc4c9bdba4de47f05df5 | |
| parent | 642aadaa320bf9466fd12e3c0903977410bcb731 (diff) | |
perf pmu: Make pmu_formats_string to check return value of strbuf
Make pmu_formats_string() to check return value of strbuf APIs so that
it can detect errors in it.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20160510054744.6158.37810.stgit@devbox
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/pmu.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index bf34468a99cb..ddb0261b2577 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -643,20 +643,20 @@ static int pmu_resolve_param_term(struct parse_events_term *term, static char *pmu_formats_string(struct list_head *formats) { struct perf_pmu_format *format; - char *str; - struct strbuf buf; + char *str = NULL; + struct strbuf buf = STRBUF_INIT; unsigned i = 0; if (!formats) return NULL; - strbuf_init(&buf, 0); /* sysfs exported terms */ list_for_each_entry(format, formats, list) - strbuf_addf(&buf, i++ ? ",%s" : "%s", - format->name); + if (strbuf_addf(&buf, i++ ? ",%s" : "%s", format->name) < 0) + goto error; str = strbuf_detach(&buf, NULL); +error: strbuf_release(&buf); return str; |