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vhost: check poll error code

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Add return value check for poll() call.

Coverity issue: 140740
Fixes: 59317cef249c ("vhost: allow many vhost-user ports")
Cc: stable@dpdk.org

Signed-off-by: Kuba Kozak <kubax.kozak@intel.com>
Acked-by: Yuanhan Liu <yliu@fridaylinux.org>
This commit is contained in:
Kuba Kozak 2017-09-22 14:17:40 +02:00 committed by Yuanhan Liu
parent 907d125e2c
commit 66a6210124
1 changed files with 4 additions and 1 deletions
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5
lib/librte_vhost/fd_man.c
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@ -222,6 +222,7 @@ fdset_event_dispatch(void *arg)
int remove1, remove2;
int need_shrink;
struct fdset *pfdset = arg;
int val;
if (pfdset == NULL)
return NULL;
@ -239,7 +240,9 @@ fdset_event_dispatch(void *arg)
numfds = pfdset->num;
pthread_mutex_unlock(&pfdset->fd_mutex);
poll(pfdset->rwfds, numfds, 1000 /* millisecs */);
val = poll(pfdset->rwfds, numfds, 1000 /* millisecs */);
if (val < 0)
continue;
need_shrink = 0;
for (i = 0; i < numfds; i++) {