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Diffstat (limited to 'net/ieee802154/dgram.c')
-rw-r--r--net/ieee802154/dgram.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/net/ieee802154/dgram.c b/net/ieee802154/dgram.c
index d1da6c619c7d..25018a9a53aa 100644
--- a/net/ieee802154/dgram.c
+++ b/net/ieee802154/dgram.c
@@ -40,9 +40,10 @@ static DEFINE_RWLOCK(dgram_lock);
40struct dgram_sock { 40struct dgram_sock {
41 struct sock sk; 41 struct sock sk;
42 42
43 int bound;
44 struct ieee802154_addr src_addr; 43 struct ieee802154_addr src_addr;
45 struct ieee802154_addr dst_addr; 44 struct ieee802154_addr dst_addr;
45
46 unsigned bound:1;
46}; 47};
47 48
48static inline struct dgram_sock *dgram_sk(const struct sock *sk) 49static inline struct dgram_sock *dgram_sk(const struct sock *sk)
@@ -86,18 +87,18 @@ static int dgram_bind(struct sock *sk, struct sockaddr *uaddr, int len)
86{ 87{
87 struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr; 88 struct sockaddr_ieee802154 *addr = (struct sockaddr_ieee802154 *)uaddr;
88 struct dgram_sock *ro = dgram_sk(sk); 89 struct dgram_sock *ro = dgram_sk(sk);
89 int err = 0; 90 int err = -EINVAL;
90 struct net_device *dev; 91 struct net_device *dev;
91 92
93 lock_sock(sk);
94
92 ro->bound = 0; 95 ro->bound = 0;
93 96
94 if (len < sizeof(*addr)) 97 if (len < sizeof(*addr))
95 return -EINVAL; 98 goto out;
96 99
97 if (addr->family != AF_IEEE802154) 100 if (addr->family != AF_IEEE802154)
98 return -EINVAL; 101 goto out;
99
100 lock_sock(sk);
101 102
102 dev = ieee802154_get_dev(sock_net(sk), &addr->addr); 103 dev = ieee802154_get_dev(sock_net(sk), &addr->addr);
103 if (!dev) { 104 if (!dev) {
@@ -113,6 +114,7 @@ static int dgram_bind(struct sock *sk, struct sockaddr *uaddr, int len)
113 memcpy(&ro->src_addr, &addr->addr, sizeof(struct ieee802154_addr)); 114 memcpy(&ro->src_addr, &addr->addr, sizeof(struct ieee802154_addr));
114 115
115 ro->bound = 1; 116 ro->bound = 1;
117 err = 0;
116out_put: 118out_put:
117 dev_put(dev); 119 dev_put(dev);
118out: 120out: