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| author | Zhen Lei <thunder.leizhen@huawei.com> | 2021-04-15 16:34:16 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-04-20 08:40:20 -0300 |
| commit | 59a1a843b028c88b2ed33a459ff2767c737d8d69 (patch) | |
| tree | f8ff121ee8db02beb0f4208ac5f63d230992a54f /tools/perf/util | |
| parent | b96da02bd6b8d7d81b345c94d3d76d8733f5ef60 (diff) | |
| download | linux-59a1a843b028c88b2ed33a459ff2767c737d8d69.tar.gz linux-59a1a843b028c88b2ed33a459ff2767c737d8d69.tar.bz2 linux-59a1a843b028c88b2ed33a459ff2767c737d8d69.zip | |
perf data: Fix error return code in perf_data__create_dir()
Although 'ret' has been initialized to -1, but it will be reassigned by
the "ret = open(...)" statement in the for loop. So that, the value of
'ret' is unknown when asprintf() failed.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210415083417.3740-1-thunder.leizhen@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/data.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c index f29af4fc3d09..8fca4779ae6a 100644 --- a/tools/perf/util/data.c +++ b/tools/perf/util/data.c @@ -35,7 +35,7 @@ void perf_data__close_dir(struct perf_data *data) int perf_data__create_dir(struct perf_data *data, int nr) { struct perf_data_file *files = NULL; - int i, ret = -1; + int i, ret; if (WARN_ON(!data->is_dir)) return -EINVAL; @@ -51,7 +51,8 @@ int perf_data__create_dir(struct perf_data *data, int nr) for (i = 0; i < nr; i++) { struct perf_data_file *file = &files[i]; - if (asprintf(&file->path, "%s/data.%d", data->path, i) < 0) + ret = asprintf(&file->path, "%s/data.%d", data->path, i); + if (ret < 0) goto out_err; ret = open(file->path, O_RDWR|O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR); |