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| author | Tomas Hozza <thozza@redhat.com> | 2013-05-22 14:54:30 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-03 14:13:09 -0700 |
| commit | 359016032239e0a585c01bffe04b72ab037e5de4 (patch) | |
| tree | 577dd2105e4f67e237e3f3ab58563d69d526890f /tools/hv/hv_kvp_daemon.c | |
| parent | 98b80d8938b8e381027f1c3f30855087238fb4fb (diff) | |
| download | lwn-359016032239e0a585c01bffe04b72ab037e5de4.tar.gz lwn-359016032239e0a585c01bffe04b72ab037e5de4.zip | |
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/hv_kvp_daemon.c')
| -rw-r--r-- | tools/hv/hv_kvp_daemon.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c index 5a1f6489d185..ae9aa1cd97fe 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. */ |