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Commit dfe1c6d7 authored by Taeung Song's avatar Taeung Song Committed by Arnaldo Carvalho de Melo
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perf config: Refactor the code using 'ret' variable in cmd_config() 



To simplify the code related to 'ret' variable in cmd_config(),
initialize 'ret' with -1 instead of 0 and use goto to perform resource
release at the end of the function, setting ret to zero just before the
out_err label, as usual in the kernel sources.

Signed-off-by: default avatarTaeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1497671202-20495-1-git-send-email-treeze.taeung@gmail.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 4f1fd742

tools/perf/builtin-config.c

+13 −17
Original line number Diff line number Diff line
@@ -156,7 +156,7 @@ static int parse_config_arg(char *arg, char **var, char **value) 


int cmd_config(int argc, const char **argv)

{

	int i, ret = 0;

	int i, ret = -1;

	struct perf_config_set *set;

	char *user_config = mkpath("%s/.perfconfig", getenv("HOME"));

	const char *config_filename;
@@ -186,10 +186,8 @@ int cmd_config(int argc, const char **argv) 
	 * because of reinitializing with options config file location.

	 */

	set = perf_config_set__new();

	if (!set) {

		ret = -1;

	if (!set)

		goto out_err;

	}



	switch (actions) {

	case ACTION_LIST:
@@ -197,10 +195,11 @@ int cmd_config(int argc, const char **argv) 
			pr_err("Error: takes no arguments\n");

			parse_options_usage(config_usage, config_options, "l", 1);

		} else {

			ret = show_config(set);

			if (ret < 0)

			if (show_config(set) < 0) {

				pr_err("Nothing configured, "

				       "please check your %s \n", config_filename);

				goto out_err;

			}

		}

		break;

	default:
@@ -215,38 +214,35 @@ int cmd_config(int argc, const char **argv) 


			if (!arg) {

				pr_err("%s: strdup failed\n", __func__);

				ret = -1;

				break;

				goto out_err;

			}



			if (parse_config_arg(arg, &var, &value) < 0) {

				free(arg);

				ret = -1;

				break;

				goto out_err;

			}



			if (value == NULL) {

				ret = show_spec_config(set, var);

				if (ret < 0) {

				if (show_spec_config(set, var) < 0) {

					pr_err("%s is not configured: %s\n",

					       var, config_filename);

					free(arg);

					break;

					goto out_err;

				}

			} else {

				ret = set_config(set, config_filename, var, value);

				if (ret < 0) {

				if (set_config(set, config_filename, var, value) < 0) {

					pr_err("Failed to set '%s=%s' on %s\n",

					       var, value, config_filename);

					free(arg);

					break;

					goto out_err;

				}

			}

			free(arg);

		}

	}



	perf_config_set__delete(set);

	ret = 0;

out_err:

	perf_config_set__delete(set);

	return ret;

}