From 032f8b8158eaab94573340c883cb6cd03cea1117 Mon Sep 17 00:00:00 2001 From: Fam Zheng Date: Wed, 10 Sep 2014 14:17:50 +0800 Subject: [PATCH] vring: Better error handling if num is too large To be more consistent inside this function. Signed-off-by: Fam Zheng Reviewed-by: Paolo Bonzini Message-id: 1410329871-28885-3-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi --- hw/virtio/dataplane/vring.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/virtio/dataplane/vring.c b/hw/virtio/dataplane/vring.c index 67cb2b823e..372706a234 100644 --- a/hw/virtio/dataplane/vring.c +++ b/hw/virtio/dataplane/vring.c @@ -181,7 +181,8 @@ static int get_desc(Vring *vring, VirtQueueElement *elem, /* Stop for now if there are not enough iovecs available. */ if (*num >= VIRTQUEUE_MAX_SIZE) { - return -ENOBUFS; + error_report("Invalid SG num: %u", *num); + return -EFAULT; } /* TODO handle non-contiguous memory across region boundaries */