linux-kernel - [PATCH net-next] tipc: Return -EINVAL on error from addr2str() methods

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Message-ID: <20241008142442.652219-1-syoshida@redhat.com>
Date: Tue,  8 Oct 2024 23:24:42 +0900
From: Shigeru Yoshida <syoshida@...hat.com>
To: jmaloy@...hat.com,
	ying.xue@...driver.com
Cc: davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	tipc-discussion@...ts.sourceforge.net,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	tung.q.nguyen@...ava.com,
	Shigeru Yoshida <syoshida@...hat.com>
Subject: [PATCH net-next] tipc: Return -EINVAL on error from addr2str() methods

The return value 1 on error of the addr2str() methods are not
descriptive. Return -EINVAL instead.

Signed-off-by: Shigeru Yoshida <syoshida@...hat.com>
---
 net/tipc/eth_media.c | 2 +-
 net/tipc/ib_media.c  | 2 +-
 net/tipc/udp_media.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c
index cb0d185e06af..fa33b333fb0d 100644
--- a/net/tipc/eth_media.c
+++ b/net/tipc/eth_media.c
@@ -42,7 +42,7 @@ static int tipc_eth_addr2str(struct tipc_media_addr *addr,
 			     char *strbuf, int bufsz)
 {
 	if (bufsz < 18)	/* 18 = strlen("aa:bb:cc:dd:ee:ff\0") */
-		return 1;
+		return -EINVAL;
 
 	sprintf(strbuf, "%pM", addr->value);
 	return 0;
diff --git a/net/tipc/ib_media.c b/net/tipc/ib_media.c
index b9ad0434c3cd..8bda3aa78891 100644
--- a/net/tipc/ib_media.c
+++ b/net/tipc/ib_media.c
@@ -49,7 +49,7 @@ static int tipc_ib_addr2str(struct tipc_media_addr *a, char *str_buf,
 			    int str_size)
 {
 	if (str_size < 60)	/* 60 = 19 * strlen("xx:") + strlen("xx\0") */
-		return 1;
+		return -EINVAL;
 
 	sprintf(str_buf, "%20phC", a->value);
 
diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c
index 439f75539977..78fff7ad4b2f 100644
--- a/net/tipc/udp_media.c
+++ b/net/tipc/udp_media.c
@@ -137,7 +137,7 @@ static int tipc_udp_addr2str(struct tipc_media_addr *a, char *buf, int size)
 		snprintf(buf, size, "%pI6:%u", &ua->ipv6, ntohs(ua->port));
 	else {
 		pr_err("Invalid UDP media address\n");
-		return 1;
+		return -EINVAL;
 	}
 
 	return 0;
-- 
2.46.0