[PATCH] ip: Make 'ip stats help' exit with -1

[Yedaya Katsman <yedaya.ka@gmail.com>]

ip <subcommand> help exits with -1 for all commands except for stats, make
it match.
This removes a goto err, which is redundant since "enabled" gets
allocated only if we find a level, but we enter do_help only if we didn't.

Fixes: df0b2c6d0098 ("ipstats: Add a shell of "show" command")
Signed-off-by: Yedaya Katsman <yedaya.ka@gmail.com>
---
 ip/ipstats.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/ip/ipstats.c b/ip/ipstats.c
index f0f8dcdcbd2a9e1c83eed6ca54df28b91c058d9c..812a11dacb2f5851ea5d16644b82e8a7a0428e5a 100644
--- a/ip/ipstats.c
+++ b/ip/ipstats.c
@@ -1085,7 +1085,9 @@ static int ipstats_enable_check(struct ipstats_sel *sel,
 	return err;
 }
 
-static int do_help(void)
+static void do_help(void) __attribute__((noreturn));
+
+static void do_help(void)
 {
 	const struct ipstats_stat_desc *toplev = &ipstats_stat_desc_toplev_group;
 	int i;
@@ -1135,8 +1137,7 @@ static int do_help(void)
 		if (opened)
 			fprintf(stderr, " }\n");
 	}
-
-	return 0;
+	exit(-1);
 }
 
 static int ipstats_select(struct ipstats_sel *old_sel,
@@ -1190,7 +1191,6 @@ static int ipstats_show(int argc, char **argv)
 			dev = *argv;
 		} else if (strcmp(*argv, "help") == 0) {
 			do_help();
-			return 0;
 		} else {
 			bool found_level = false;
 
@@ -1209,8 +1209,6 @@ static int ipstats_show(int argc, char **argv)
 			if (!found_level) {
 				fprintf(stderr, "What is \"%s\"?\n", *argv);
 				do_help();
-				err = -EINVAL;
-				goto err;
 			}
 		}
 
@@ -1286,11 +1284,9 @@ static int ipstats_set(int argc, char **argv)
 				return err;
 		} else if (strcmp(*argv, "help") == 0) {
 			do_help();
-			return 0;
 		} else {
 			fprintf(stderr, "What is \"%s\"?\n", *argv);
 			do_help();
-			return -EINVAL;
 		}
 
 		NEXT_ARG_FWD();
@@ -1321,7 +1317,6 @@ int do_ipstats(int argc, char **argv)
 		rc = ipstats_show(0, NULL);
 	} else if (strcmp(*argv, "help") == 0) {
 		do_help();
-		rc = 0;
 	} else if (strcmp(*argv, "show") == 0) {
 		/* Invoking "stats show" implies one -s. Passing -d adds one
 		 * more -s.

---
base-commit: 218757a8b8bb431b382d7a104edb6ed4336d3b43
change-id: 20260301-ip-stats-exit-code-ce417579bcb6

Best regards,
-- 
Yedaya Katsman <yedaya.ka@gmail.com>