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authorphil.turnbull@oracle.com <phil.turnbull@oracle.com>2016-09-15 12:41:44 -0400
committerDavid S. Miller <davem@davemloft.net>2016-09-17 09:59:31 -0400
commit8ab86c00e349cef9fb14719093a7f198bcc72629 (patch)
treebf17b411a164736fca71a74b42b7067b25709bce /net/irda
parent20c64d5cd5a2bdcdc8982a06cb05e5e1bd851a3d (diff)
downloadlinux-8ab86c00e349cef9fb14719093a7f198bcc72629.tar.gz
irda: Free skb on irda_accept error path.
skb is not freed if newsk is NULL. Rework the error path so free_skb is
unconditionally called on function exit.

Fixes: c3ea9fa27413 ("[IrDA] af_irda: IRDA_ASSERT cleanups")
Signed-off-by: Phil Turnbull <phil.turnbull@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/irda')
-rw-r--r--net/irda/af_irda.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 8d2f7c9b491d..ccc244406fb9 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -832,7 +832,7 @@ static int irda_accept(struct socket *sock, struct socket *newsock, int flags)
 	struct sock *sk = sock->sk;
 	struct irda_sock *new, *self = irda_sk(sk);
 	struct sock *newsk;
-	struct sk_buff *skb;
+	struct sk_buff *skb = NULL;
 	int err;
 
 	err = irda_create(sock_net(sk), newsock, sk->sk_protocol, 0);
@@ -900,7 +900,6 @@ static int irda_accept(struct socket *sock, struct socket *newsock, int flags)
 	err = -EPERM; /* value does not seem to make sense. -arnd */
 	if (!new->tsap) {
 		pr_debug("%s(), dup failed!\n", __func__);
-		kfree_skb(skb);
 		goto out;
 	}
 
@@ -919,7 +918,6 @@ static int irda_accept(struct socket *sock, struct socket *newsock, int flags)
 	/* Clean up the original one to keep it in listen state */
 	irttp_listen(self->tsap);
 
-	kfree_skb(skb);
 	sk->sk_ack_backlog--;
 
 	newsock->state = SS_CONNECTED;
@@ -927,6 +925,7 @@ static int irda_accept(struct socket *sock, struct socket *newsock, int flags)
 	irda_connect_response(new);
 	err = 0;
 out:
+	kfree_skb(skb);
 	release_sock(sk);
 	return err;
 }