aboutsummaryrefslogtreecommitdiffstats
path: root/arch/um/drivers/mcast_user.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/um/drivers/mcast_user.c')
-rw-r--r--arch/um/drivers/mcast_user.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/um/drivers/mcast_user.c b/arch/um/drivers/mcast_user.c
index 7a0d115b29d0..5db136e2651c 100644
--- a/arch/um/drivers/mcast_user.c
+++ b/arch/um/drivers/mcast_user.c
@@ -13,7 +13,6 @@
13 13
14#include <errno.h> 14#include <errno.h>
15#include <unistd.h> 15#include <unistd.h>
16#include <linux/inet.h>
17#include <sys/socket.h> 16#include <sys/socket.h>
18#include <sys/un.h> 17#include <sys/un.h>
19#include <sys/time.h> 18#include <sys/time.h>
@@ -55,7 +54,7 @@ static int mcast_open(void *data)
55 struct mcast_data *pri = data; 54 struct mcast_data *pri = data;
56 struct sockaddr_in *sin = pri->mcast_addr; 55 struct sockaddr_in *sin = pri->mcast_addr;
57 struct ip_mreq mreq; 56 struct ip_mreq mreq;
58 int fd = -EINVAL, yes = 1, err = -EINVAL;; 57 int fd, yes = 1, err = 0;
59 58
60 59
61 if ((sin->sin_addr.s_addr == 0) || (sin->sin_port == 0)) 60 if ((sin->sin_addr.s_addr == 0) || (sin->sin_port == 0))
@@ -66,13 +65,14 @@ static int mcast_open(void *data)
66 if (fd < 0){ 65 if (fd < 0){
67 printk("mcast_open : data socket failed, errno = %d\n", 66 printk("mcast_open : data socket failed, errno = %d\n",
68 errno); 67 errno);
69 fd = -errno; 68 err = -errno;
70 goto out; 69 goto out;
71 } 70 }
72 71
73 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) < 0) { 72 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) < 0) {
74 printk("mcast_open: SO_REUSEADDR failed, errno = %d\n", 73 printk("mcast_open: SO_REUSEADDR failed, errno = %d\n",
75 errno); 74 errno);
75 err = -errno;
76 goto out_close; 76 goto out_close;
77 } 77 }
78 78
@@ -81,6 +81,7 @@ static int mcast_open(void *data)
81 sizeof(pri->ttl)) < 0) { 81 sizeof(pri->ttl)) < 0) {
82 printk("mcast_open: IP_MULTICAST_TTL failed, error = %d\n", 82 printk("mcast_open: IP_MULTICAST_TTL failed, error = %d\n",
83 errno); 83 errno);
84 err = -errno;
84 goto out_close; 85 goto out_close;
85 } 86 }
86 87
@@ -88,12 +89,14 @@ static int mcast_open(void *data)
88 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) {
89 printk("mcast_open: IP_MULTICAST_LOOP failed, error = %d\n", 90 printk("mcast_open: IP_MULTICAST_LOOP failed, error = %d\n",
90 errno); 91 errno);
92 err = -errno;
91 goto out_close; 93 goto out_close;
92 } 94 }
93 95
94 /* bind socket to mcast address */ 96 /* bind socket to mcast address */
95 if (bind(fd, (struct sockaddr *) sin, sizeof(*sin)) < 0) { 97 if (bind(fd, (struct sockaddr *) sin, sizeof(*sin)) < 0) {
96 printk("mcast_open : data bind failed, errno = %d\n", errno); 98 printk("mcast_open : data bind failed, errno = %d\n", errno);
99 err = -errno;
97 goto out_close; 100 goto out_close;
98 } 101 }
99 102
@@ -108,14 +111,15 @@ static int mcast_open(void *data)
108 "interface on the host.\n"); 111 "interface on the host.\n");
109 printk("eth0 should be configured in order to use the " 112 printk("eth0 should be configured in order to use the "
110 "multicast transport.\n"); 113 "multicast transport.\n");
114 err = -errno;
111 goto out_close; 115 goto out_close;
112 } 116 }
113 117
114 out:
115 return fd; 118 return fd;
116 119
117 out_close: 120 out_close:
118 os_close_file(fd); 121 os_close_file(fd);
122 out:
119 return err; 123 return err;
120} 124}
121 125