From 280f294f7bd0c14d9f802a551c95dc930e31d723 Mon Sep 17 00:00:00 2001 From: "Gustavo F. Padovan" Date: Wed, 13 Apr 2011 19:01:22 -0300 Subject: [PATCH] Bluetooth: Don't lock sock inside l2cap_get_sock_by_scid() Fix an locking issue with the new l2cap_att_channel(). l2cap_att_channel() was trying to lock a locked socket. Reported-by: Anderson Lizardo Signed-off-by: Gustavo F. Padovan --- net/bluetooth/l2cap_core.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index c9c1f9257a91..d5db5a38df6a 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -594,7 +594,7 @@ static void l2cap_conn_start(struct l2cap_conn *conn) */ static struct sock *l2cap_get_sock_by_scid(int state, __le16 cid, bdaddr_t *src) { - struct sock *s, *sk = NULL, *sk1 = NULL; + struct sock *sk = NULL, *sk1 = NULL; struct hlist_node *node; read_lock(&l2cap_sk_list.lock); @@ -613,12 +613,10 @@ static struct sock *l2cap_get_sock_by_scid(int state, __le16 cid, bdaddr_t *src) sk1 = sk; } } - s = node ? sk : sk1; - if (s) - bh_lock_sock(s); + read_unlock(&l2cap_sk_list.lock); - return s; + return node ? sk : sk1; } static void l2cap_le_conn_ready(struct l2cap_conn *conn) -- 2.20.1