From: Colin King <colin.king@canonical.com>
To: David Ahern <dsahern@kernel.org>,
"David S . Miller" <davem@davemloft.net>,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
Jakub Kicinski <kuba@kernel.org>,
netdev@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH][net-next] nexthop: fix incorrect allocation failure on nhg->spare
Date: Thu, 28 May 2020 15:51:14 +0100 [thread overview]
Message-ID: <20200528145114.420100-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king@canonical.com>
The allocation failure check for nhg->spare is currently checking
the pointer nhg rather than nhg->spare which is never false. Fix
this by checking nhg->spare instead.
Addresses-Coverity: ("Logically dead code")
Fixes: 430a049190de ("nexthop: Add support for nexthop groups")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
net/ipv4/nexthop.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c
index ebafa5ed91ac..97423d6f2de9 100644
--- a/net/ipv4/nexthop.c
+++ b/net/ipv4/nexthop.c
@@ -1185,7 +1185,7 @@ static struct nexthop *nexthop_create_group(struct net *net,
/* spare group used for removals */
nhg->spare = nexthop_grp_alloc(num_nh);
- if (!nhg) {
+ if (!nhg->spare) {
kfree(nhg);
kfree(nh);
return NULL;
--
2.25.1
next reply other threads:[~2020-05-28 14:51 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-28 14:51 Colin King [this message]
2020-05-28 14:53 ` [PATCH][net-next] nexthop: fix incorrect allocation failure on nhg->spare Nikolay Aleksandrov
2020-05-28 14:55 ` David Ahern
2020-05-28 14:55 ` Nikolay Aleksandrov
2020-05-28 15:53 ` Colin Ian King
2020-05-28 15:55 ` Nikolay Aleksandrov
2020-05-28 15:56 ` Colin Ian King
2020-05-30 0:15 ` David Miller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200528145114.420100-1-colin.king@canonical.com \
--to=colin.king@canonical.com \
--cc=davem@davemloft.net \
--cc=dsahern@kernel.org \
--cc=kernel-janitors@vger.kernel.org \
--cc=kuba@kernel.org \
--cc=kuznet@ms2.inr.ac.ru \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=yoshfuji@linux-ipv6.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).