Commit 4d81e307 authored May 22, 2013 by Tomas Hozza Committed by Greg Kroah-Hartman Jun 03, 2013

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: Tomas Hozza <thozza@redhat.com>
Acked-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 35901603

tools/hv/hv_kvp_daemon.c

+10 −1

Original line number	Diff line number	Diff line
		@@ -1490,7 +1490,16 @@ 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, kvp_recv_buffer, sizeof(kvp_recv_buffer), 0,
		addr_p, &addr_l);