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path: root/arch/um/drivers/mcast_user.c
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Diffstat (limited to 'arch/um/drivers/mcast_user.c')
-rw-r--r--arch/um/drivers/mcast_user.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/arch/um/drivers/mcast_user.c b/arch/um/drivers/mcast_user.c
index 5db136e2651c..afe85bfa66e0 100644
--- a/arch/um/drivers/mcast_user.c
+++ b/arch/um/drivers/mcast_user.c
@@ -54,7 +54,7 @@ static int mcast_open(void *data)
54 struct mcast_data *pri = data; 54 struct mcast_data *pri = data;
55 struct sockaddr_in *sin = pri->mcast_addr; 55 struct sockaddr_in *sin = pri->mcast_addr;
56 struct ip_mreq mreq; 56 struct ip_mreq mreq;
57 int fd, yes = 1, err = 0; 57 int fd, yes = 1, err = -EINVAL;
58 58
59 59
60 if ((sin->sin_addr.s_addr == 0) || (sin->sin_port == 0)) 60 if ((sin->sin_addr.s_addr == 0) || (sin->sin_port == 0))
@@ -63,40 +63,40 @@ static int mcast_open(void *data)
63 fd = socket(AF_INET, SOCK_DGRAM, 0); 63 fd = socket(AF_INET, SOCK_DGRAM, 0);
64 64
65 if (fd < 0){ 65 if (fd < 0){
66 err = -errno;
66 printk("mcast_open : data socket failed, errno = %d\n", 67 printk("mcast_open : data socket failed, errno = %d\n",
67 errno); 68 errno);
68 err = -errno;
69 goto out; 69 goto out;
70 } 70 }
71 71
72 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) < 0) { 72 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) < 0) {
73 err = -errno;
73 printk("mcast_open: SO_REUSEADDR failed, errno = %d\n", 74 printk("mcast_open: SO_REUSEADDR failed, errno = %d\n",
74 errno); 75 errno);
75 err = -errno;
76 goto out_close; 76 goto out_close;
77 } 77 }
78 78
79 /* set ttl according to config */ 79 /* set ttl according to config */
80 if (setsockopt(fd, SOL_IP, IP_MULTICAST_TTL, &pri->ttl, 80 if (setsockopt(fd, SOL_IP, IP_MULTICAST_TTL, &pri->ttl,
81 sizeof(pri->ttl)) < 0) { 81 sizeof(pri->ttl)) < 0) {
82 err = -errno;
82 printk("mcast_open: IP_MULTICAST_TTL failed, error = %d\n", 83 printk("mcast_open: IP_MULTICAST_TTL failed, error = %d\n",
83 errno); 84 errno);
84 err = -errno;
85 goto out_close; 85 goto out_close;
86 } 86 }
87 87
88 /* set LOOP, so data does get fed back to local sockets */ 88 /* set LOOP, so data does get fed back to local sockets */
89 if (setsockopt(fd, SOL_IP, IP_MULTICAST_LOOP, &yes, sizeof(yes)) < 0) { 89 if (setsockopt(fd, SOL_IP, IP_MULTICAST_LOOP, &yes, sizeof(yes)) < 0) {
90 err = -errno;
90 printk("mcast_open: IP_MULTICAST_LOOP failed, error = %d\n", 91 printk("mcast_open: IP_MULTICAST_LOOP failed, error = %d\n",
91 errno); 92 errno);
92 err = -errno;
93 goto out_close; 93 goto out_close;
94 } 94 }
95 95
96 /* bind socket to mcast address */ 96 /* bind socket to mcast address */
97 if (bind(fd, (struct sockaddr *) sin, sizeof(*sin)) < 0) { 97 if (bind(fd, (struct sockaddr *) sin, sizeof(*sin)) < 0) {
98 printk("mcast_open : data bind failed, errno = %d\n", errno);
99 err = -errno; 98 err = -errno;
99 printk("mcast_open : data bind failed, errno = %d\n", errno);
100 goto out_close; 100 goto out_close;
101 } 101 }
102 102
@@ -105,22 +105,22 @@ static int mcast_open(void *data)
105 mreq.imr_interface.s_addr = 0; 105 mreq.imr_interface.s_addr = 0;
106 if (setsockopt(fd, SOL_IP, IP_ADD_MEMBERSHIP, 106 if (setsockopt(fd, SOL_IP, IP_ADD_MEMBERSHIP,
107 &mreq, sizeof(mreq)) < 0) { 107 &mreq, sizeof(mreq)) < 0) {
108 err = -errno;
108 printk("mcast_open: IP_ADD_MEMBERSHIP failed, error = %d\n", 109 printk("mcast_open: IP_ADD_MEMBERSHIP failed, error = %d\n",
109 errno); 110 errno);
110 printk("There appears not to be a multicast-capable network " 111 printk("There appears not to be a multicast-capable network "
111 "interface on the host.\n"); 112 "interface on the host.\n");
112 printk("eth0 should be configured in order to use the " 113 printk("eth0 should be configured in order to use the "
113 "multicast transport.\n"); 114 "multicast transport.\n");
114 err = -errno; 115 goto out_close;
115 goto out_close;
116 } 116 }
117 117
118 return fd; 118 return fd;
119 119
120 out_close: 120 out_close:
121 os_close_file(fd); 121 os_close_file(fd);
122 out: 122 out:
123 return err; 123 return err;
124} 124}
125 125
126static void mcast_close(int fd, void *data) 126static void mcast_close(int fd, void *data)