[mptcp-next,2/3] Squash-to: mptcp: netlink: Add MPTCP_PM_CMD_REMOVE

Commit Message

Kishen Maloor April 19, 2022, 11:03 p.m. UTC

Signed-off-by: Kishen Maloor <[e-mail]>
---
 net/mptcp/pm_userspace.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

Patch

diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c
index fca3e4bdf5d4..3d8f6126b952 100644
--- a/net/mptcp/pm_userspace.c
+++ b/net/mptcp/pm_userspace.c
@@ -189,12 +189,13 @@  int mptcp_nl_cmd_remove(struct sk_buff *skb, struct genl_info *info)
 	struct mptcp_pm_addr_entry *entry;
 	struct mptcp_sock *msk;
 	LIST_HEAD(free_list);
+	int err = -EINVAL;
 	u32 token_val;
 	u8 id_val;
 
 	if (!id || !token) {
 		GENL_SET_ERR_MSG(info, "missing required inputs");
-		return -EINVAL;
+		return err;
 	}
 
 	id_val = nla_get_u8(id);
@@ -203,12 +204,12 @@  int mptcp_nl_cmd_remove(struct sk_buff *skb, struct genl_info *info)
 	msk = mptcp_token_get_sock(sock_net(skb->sk), token_val);
 	if (!msk) {
 		NL_SET_ERR_MSG_ATTR(info->extack, token, "invalid token");
-		return -EINVAL;
+		return err;
 	}
 
 	if (!mptcp_pm_is_userspace(msk)) {
 		GENL_SET_ERR_MSG(info, "invalid request; userspace PM not selected");
-		return -EINVAL;
+		goto remove_err;
 	}
 
 	lock_sock((struct sock *)msk);
@@ -223,7 +224,7 @@  int mptcp_nl_cmd_remove(struct sk_buff *skb, struct genl_info *info)
 	if (!match) {
 		GENL_SET_ERR_MSG(info, "address with specified id not found");
 		release_sock((struct sock *)msk);
-		return -EINVAL;
+		goto remove_err;
 	}
 
 	list_move(&match->list, &free_list);
@@ -235,7 +236,11 @@  int mptcp_nl_cmd_remove(struct sk_buff *skb, struct genl_info *info)
 	list_for_each_entry_safe(match, entry, &free_list, list) {
 		sock_kfree_s((struct sock *)msk, match, sizeof(*match));
 	}
-	return 0;
+
+	err = 0;
+ remove_err:
+	sock_put((struct sock *)msk);
+	return err;
 }
 
 int mptcp_nl_cmd_sf_create(struct sk_buff *skb, struct genl_info *info)