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tools: hv: Check return value of setsockopt call

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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>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Hozza 2013-06-27 13:52:48 +02:00 committed by Greg Kroah-Hartman
parent 9561d47931
commit d12e146924
1 changed files with 5 additions and 1 deletions
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6
tools/hv/hv_vss_daemon.c
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@ -173,7 +173,11 @@ int main(void)
exit(EXIT_FAILURE);
}
nl_group = CN_VSS_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.
*/