[PATCH] chtls: Fix potential resource leak

The dst entry should be released if no neighbour is found. Goto label
free_dst to fix the issue. Besides, the check of ndev against NULL is
redundant.

Signed-off-by: Pan Bian <redacted>
---
 .../net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c    | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c
index e5cfbe196ba6..19dc7dc054a2 100644
--- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c
+++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c

@@ -1158,11 +1158,9 @@ static struct sock *chtls_recv_sock(struct sock *lsk,
 #endif
 	}
 	if (!n || !n->dev)
-		goto free_sk;
+		goto free_dst;
 
 	ndev = n->dev;
-	if (!ndev)
-		goto free_dst;
 	if (is_vlan_dev(ndev))
 		ndev = vlan_dev_real_dev(ndev);
 

@@ -1250,7 +1248,8 @@ static struct sock *chtls_recv_sock(struct sock *lsk,
 free_csk:
 	chtls_sock_release(&csk->kref);
 free_dst:
-	neigh_release(n);
+	if (n)
+		neigh_release(n);
 	dst_release(dst);
 free_sk:
 	inet_csk_prepare_forced_close(newsk);

-- 
2.17.1

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Thu, 21 Jan 2021 06:57:38 -0800 you wrote:

The dst entry should be released if no neighbour is found. Goto label
free_dst to fix the issue. Besides, the check of ndev against NULL is
redundant.

Signed-off-by: Pan Bian <redacted>
---
 .../net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c    | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

Here is the summary with links:
  - chtls: Fix potential resource leak
    https://git.kernel.org/netdev/net/c/b6011966ac6f

You are awesome, thank you!
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