aboutsummaryrefslogtreecommitdiffstats
path: root/tools/hv
diff options
context:
space:
mode:
authorTomas Hozza <thozza@redhat.com>2013-06-27 11:52:49 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-07-26 23:40:41 (GMT)
commit9561d479314f16b41563f73511fb61d91de4642f (patch)
treeb5d65509e4ba9f851fc0402fabb68b1363023d69 /tools/hv
parent5c2892698184bf82e1f7d5c557ad81c9570b569a (diff)
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> Signed-off-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_vss_daemon.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/tools/hv/hv_vss_daemon.c b/tools/hv/hv_vss_daemon.c
index 64112e1..5febe35 100644
--- a/tools/hv/hv_vss_daemon.c
+++ b/tools/hv/hv_vss_daemon.c
@@ -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);

Privacy Policy