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authorTomas Hozza <thozza@redhat.com>2013-05-22 12:54:30 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-06-03 21:13:09 (GMT)
commit359016032239e0a585c01bffe04b72ab037e5de4 (patch)
tree577dd2105e4f67e237e3f3ab58563d69d526890f /tools/hv
parent98b80d8938b8e381027f1c3f30855087238fb4fb (diff)
tools: hv: Check return value of setsockopt call
Check return value of setsockopt call and if it fails print error to the system log and exit with non-zero value. Signed-off-by: Tomas Hozza <thozza@redhat.com> Acked-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/hv')
-rw-r--r--tools/hv/hv_kvp_daemon.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
index 5a1f648..ae9aa1c 100644
--- a/tools/hv/hv_kvp_daemon.c
+++ b/tools/hv/hv_kvp_daemon.c
@@ -1457,7 +1457,13 @@ int main(void)
exit(EXIT_FAILURE);
}
nl_group = CN_KVP_IDX;
- setsockopt(fd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP, &nl_group, sizeof(nl_group));
+
+ if (setsockopt(fd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP, &nl_group, sizeof(nl_group)) < 0) {
+ syslog(LOG_ERR, "setsockopt failed; error: %d %s", errno, strerror(errno));
+ close(fd);
+ exit(EXIT_FAILURE);
+ }
+
/*
* Register ourselves with the kernel.
*/

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