提交 39deb2c7 编写于 作者: Z Zhi Yong Wu 提交者: David S. Miller

vxlan: silence one build warning

drivers/net/vxlan.c: In function ‘vxlan_sock_add’:
drivers/net/vxlan.c:2298:11: warning: ‘sock’ may be used uninitialized in this function [-Wmaybe-uninitialized]
drivers/net/vxlan.c:2275:17: note: ‘sock’ was declared here
  LD      drivers/net/built-in.o
Signed-off-by: NZhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: NStephen Hemminger <stephen@networkplumber.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 daba287b
......@@ -2180,7 +2180,7 @@ static void vxlan_del_work(struct work_struct *work)
* could be used for both IPv4 and IPv6 communications, but
* users may set bindv6only=1.
*/
static int create_v6_sock(struct net *net, __be16 port, struct socket **psock)
static struct socket *create_v6_sock(struct net *net, __be16 port)
{
struct sock *sk;
struct socket *sock;
......@@ -2193,7 +2193,7 @@ static int create_v6_sock(struct net *net, __be16 port, struct socket **psock)
rc = sock_create_kern(AF_INET6, SOCK_DGRAM, IPPROTO_UDP, &sock);
if (rc < 0) {
pr_debug("UDPv6 socket create failed\n");
return rc;
return ERR_PTR(rc);
}
/* Put in proper namespace */
......@@ -2208,28 +2208,27 @@ static int create_v6_sock(struct net *net, __be16 port, struct socket **psock)
pr_debug("bind for UDPv6 socket %pI6:%u (%d)\n",
&vxlan_addr.sin6_addr, ntohs(vxlan_addr.sin6_port), rc);
sk_release_kernel(sk);
return rc;
return ERR_PTR(rc);
}
/* At this point, IPv6 module should have been loaded in
* sock_create_kern().
*/
BUG_ON(!ipv6_stub);
*psock = sock;
/* Disable multicast loopback */
inet_sk(sk)->mc_loop = 0;
return 0;
return sock;
}
#else
static int create_v6_sock(struct net *net, __be16 port, struct socket **psock)
static struct socket *create_v6_sock(struct net *net, __be16 port)
{
return -EPFNOSUPPORT;
return ERR_PTR(-EPFNOSUPPORT);
}
#endif
static int create_v4_sock(struct net *net, __be16 port, struct socket **psock)
static struct socket *create_v4_sock(struct net *net, __be16 port)
{
struct sock *sk;
struct socket *sock;
......@@ -2244,7 +2243,7 @@ static int create_v4_sock(struct net *net, __be16 port, struct socket **psock)
rc = sock_create_kern(AF_INET, SOCK_DGRAM, IPPROTO_UDP, &sock);
if (rc < 0) {
pr_debug("UDP socket create failed\n");
return rc;
return ERR_PTR(rc);
}
/* Put in proper namespace */
......@@ -2257,13 +2256,12 @@ static int create_v4_sock(struct net *net, __be16 port, struct socket **psock)
pr_debug("bind for UDP socket %pI4:%u (%d)\n",
&vxlan_addr.sin_addr, ntohs(vxlan_addr.sin_port), rc);
sk_release_kernel(sk);
return rc;
return ERR_PTR(rc);
}
*psock = sock;
/* Disable multicast loopback */
inet_sk(sk)->mc_loop = 0;
return 0;
return sock;
}
/* Create new listen socket if needed */
......@@ -2274,7 +2272,6 @@ static struct vxlan_sock *vxlan_socket_create(struct net *net, __be16 port,
struct vxlan_sock *vs;
struct socket *sock;
struct sock *sk;
int rc = 0;
unsigned int h;
vs = kmalloc(sizeof(*vs), GFP_KERNEL);
......@@ -2287,12 +2284,12 @@ static struct vxlan_sock *vxlan_socket_create(struct net *net, __be16 port,
INIT_WORK(&vs->del_work, vxlan_del_work);
if (ipv6)
rc = create_v6_sock(net, port, &sock);
sock = create_v6_sock(net, port);
else
rc = create_v4_sock(net, port, &sock);
if (rc < 0) {
sock = create_v4_sock(net, port);
if (IS_ERR(sock)) {
kfree(vs);
return ERR_PTR(rc);
return ERR_PTR(PTR_ERR(sock));
}
vs->sock = sock;
......
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