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perf trace: Fix off by one string allocation problem

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We need to consider the null terminator, oops, fix it.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Fixes: 017037ff3d ("perf trace: Allow specifying list of syscalls and events in -e/--expr/--event")
Link: http://lkml.kernel.org/n/tip-j79jpqqe91gvxqmsgxgfn2ni@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2017-08-17 15:12:55 -03:00
parent c73881eeb1
commit d6d4fc6fef
1 changed files with 1 additions and 1 deletions
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tools/perf/builtin-trace.c
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@ -2806,7 +2806,7 @@ static int trace__parse_events_option(const struct option *opt, const char *str,
struct trace *trace = (struct trace *)opt->value;
const char *s = str;
char *sep = NULL, *lists[2] = { NULL, NULL, };
int len = strlen(str), err = -1, list;
int len = strlen(str) + 1, err = -1, list;
char *strace_groups_dir = system_path(STRACE_GROUPS_DIR);
char group_name[PATH_MAX];