Commit 9561d479 authored by Tomas Hozza's avatar Tomas Hozza Committed by Greg Kroah-Hartman

tools: hv: Check return value of poll call

Check return value of poll call and if it fails print error to the
system log. If errno is EINVAL then exit with non-zero value otherwise
continue the while loop and call poll again.
Signed-off-by: default avatarTomas Hozza <thozza@redhat.com>
Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5c289269
......@@ -200,7 +200,16 @@ int main(void)
socklen_t addr_l = sizeof(addr);
pfd.events = POLLIN;
pfd.revents = 0;
poll(&pfd, 1, -1);
if (poll(&pfd, 1, -1) < 0) {
syslog(LOG_ERR, "poll failed; error:%d %s", errno, strerror(errno));
if (errno == EINVAL) {
close(fd);
exit(EXIT_FAILURE);
}
else
continue;
}
len = recvfrom(fd, vss_recv_buffer, sizeof(vss_recv_buffer), 0,
addr_p, &addr_l);
......
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