4.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Arkadi Sharshevsky <arkadis@xxxxxxxxxxxx>
[ Upstream commit 7fe4d6dcbcb43fe0282d4213fc52be178bb30e91 ]
The current code performs unneeded free. Remove the redundant skb freeing
during the error path.
Fixes: 1555d204e743 ("devlink: Support for pipeline debug (dpipe)")
Signed-off-by: Arkadi Sharshevsky <arkadis@xxxxxxxxxxxx>
Acked-by: Jiri Pirko <jiri@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/core/devlink.c | 16 ++++------------
1 file changed, 4 insertions(+), 12 deletions(-)
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -1776,7 +1776,7 @@ send_done:
if (!nlh) {
err = devlink_dpipe_send_and_alloc_skb(&skb, info);
if (err)
- goto err_skb_send_alloc;
+ return err;
goto send_done;
}
@@ -1785,7 +1785,6 @@ send_done:
nla_put_failure:
err = -EMSGSIZE;
err_table_put:
-err_skb_send_alloc:
genlmsg_cancel(skb, hdr);
nlmsg_free(skb);
return err;
@@ -2051,7 +2050,7 @@ static int devlink_dpipe_entries_fill(st
table->counters_enabled,
&dump_ctx);
if (err)
- goto err_entries_dump;
+ return err;
send_done:
nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq,
@@ -2059,16 +2058,10 @@ send_done:
if (!nlh) {
err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info);
if (err)
- goto err_skb_send_alloc;
+ return err;
goto send_done;
}
return genlmsg_reply(dump_ctx.skb, info);
-
-err_entries_dump:
-err_skb_send_alloc:
- genlmsg_cancel(dump_ctx.skb, dump_ctx.hdr);
- nlmsg_free(dump_ctx.skb);
- return err;
}
static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb,
@@ -2207,7 +2200,7 @@ send_done:
if (!nlh) {
err = devlink_dpipe_send_and_alloc_skb(&skb, info);
if (err)
- goto err_skb_send_alloc;
+ return err;
goto send_done;
}
return genlmsg_reply(skb, info);
@@ -2215,7 +2208,6 @@ send_done:
nla_put_failure:
err = -EMSGSIZE;
err_table_put:
-err_skb_send_alloc:
genlmsg_cancel(skb, hdr);
nlmsg_free(skb);
return err;