linux-kernel - [PATCH AUTOSEL 5.12 13/39] net: ipv4: Remove unneed BUG() function

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Message-Id: <20210621175156.735062-13-sashal@kernel.org>
Date:   Mon, 21 Jun 2021 13:51:29 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Zheng Yongjun <zhengyongjun3@...wei.com>,
        "David S . Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 5.12 13/39] net: ipv4: Remove unneed BUG() function

From: Zheng Yongjun <zhengyongjun3@...wei.com>

[ Upstream commit 5ac6b198d7e312bd10ebe7d58c64690dc59cc49a ]

When 'nla_parse_nested_deprecated' failed, it's no need to
BUG() here, return -EINVAL is ok.

Signed-off-by: Zheng Yongjun <zhengyongjun3@...wei.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 net/ipv4/devinet.c  | 2 +-
 net/ipv6/addrconf.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 2e35f68da40a..1c6429c353a9 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1989,7 +1989,7 @@ static int inet_set_link_af(struct net_device *dev, const struct nlattr *nla,
 		return -EAFNOSUPPORT;
 
 	if (nla_parse_nested_deprecated(tb, IFLA_INET_MAX, nla, NULL, NULL) < 0)
-		BUG();
+		return -EINVAL;
 
 	if (tb[IFLA_INET_CONF]) {
 		nla_for_each_nested(a, tb[IFLA_INET_CONF], rem)
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index a9e53f5942fa..eab0a46983c0 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -5822,7 +5822,7 @@ static int inet6_set_link_af(struct net_device *dev, const struct nlattr *nla,
 		return -EAFNOSUPPORT;
 
 	if (nla_parse_nested_deprecated(tb, IFLA_INET6_MAX, nla, NULL, NULL) < 0)
-		BUG();
+		return -EINVAL;
 
 	if (tb[IFLA_INET6_TOKEN]) {
 		err = inet6_set_iftoken(idev, nla_data(tb[IFLA_INET6_TOKEN]),
-- 
2.30.2