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devlink: fix potential memort leak 

We must free allocated skb when genlmsg_put() return fails.

Fixes: 1555d204e7 ("devlink: Support for pipeline debug (dpipe)")
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Haishuang Yan 2017-06-05 08:57:21 +08:00 committed by David S. Miller
parent 1e0ce2a1ee
commit 6044bd4a7d
1 changed files with 6 additions and 2 deletions
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8
net/core/devlink.c
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@ -1680,8 +1680,10 @@ start_again:
hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq,
&devlink_nl_family, NLM_F_MULTI, cmd);
if (!hdr)
if (!hdr) {
nlmsg_free(skb);
return -EMSGSIZE;
}
if (devlink_nl_put_handle(skb, devlink))
goto nla_put_failure;
@ -2098,8 +2100,10 @@ start_again:
hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq,
&devlink_nl_family, NLM_F_MULTI, cmd);
if (!hdr)
if (!hdr) {
nlmsg_free(skb);
return -EMSGSIZE;
}
if (devlink_nl_put_handle(skb, devlink))
goto nla_put_failure;