[PATCH 03/23] perf config: Invert an if statement to reduce nesting in cmd_config()

Arnaldo Carvalho de Melo
2017-06-20T01:57:31Z

From: Taeung Song <treeze.taeung@gmail.com>

Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1494241650-32210-1-git-send-email-treeze.taeung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-config.c | 44 +++++++++++++++++++++++---------------------
1 file changed, 23 insertions(+), 21 deletions(-)

diff --git a/tools/perf/builtin-config.c b/tools/perf/builtin-config.c
index 80668fa7556e..75459668edb2 100644
--- a/tools/perf/builtin-config.c
+++ b/tools/perf/builtin-config.c
@@ -204,31 +204,33 @@ int cmd_config(int argc, const char **argv)
}
break;
default:
- if (argc) {
- for (i = 0; argv[i]; i++) {
- char *var, *value;
- char *arg = strdup(argv[i]);
-
- if (!arg) {
- pr_err("%s: strdup failed\n", __func__);
- ret = -1;
- break;
- }
+ if (!argc) {
+ usage_with_options(config_usage, config_options);
+ break;
+ }

- if (parse_config_arg(arg, &var, &value) < 0) {
- free(arg);
- ret = -1;
- break;
- }
+ for (i = 0; argv[i]; i++) {
+ char *var, *value;
+ char *arg = strdup(argv[i]);

- if (value == NULL)
- ret = show_spec_config(set, var);
- else
- ret = set_config(set, config_filename, var, value);
+ if (!arg) {
+ pr_err("%s: strdup failed\n", __func__);
+ ret = -1;
+ break;
+ }
+
+ if (parse_config_arg(arg, &var, &value) < 0) {
free(arg);
+ ret = -1;
+ break;
}
- } else
- usage_with_options(config_usage, config_options);
+
+ if (value == NULL)
+ ret = show_spec_config(set, var);
+ else
+ ret = set_config(set, config_filename, var, value);
+ free(arg);
+ }
}

perf_config_set__delete(set);
--
2.9.4