diff mbox series

[v4,03/14] vringh: reset kiov 'consumed' field in __vringh_iov()

Message ID 20210315163450.254396-4-sgarzare@redhat.com (mailing list archive)
State Not Applicable
Delegated to: Netdev Maintainers
Headers show
Series vdpa: add vdpa simulator for block device | expand

Checks

Context Check Description
netdev/tree_selection success Not a local patch

Commit Message

Stefano Garzarella March 15, 2021, 4:34 p.m. UTC 
__vringh_iov() overwrites the contents of riov and wiov, in fact it
resets the 'i' and 'used' fields, but also the 'consumed' field should
be reset to avoid an inconsistent state.

Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
---
 drivers/vhost/vringh.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c
index f68122705719..bee63d68201a 100644
--- a/drivers/vhost/vringh.c
+++ b/drivers/vhost/vringh.c
@@ -290,9 +290,9 @@  __vringh_iov(struct vringh *vrh, u16 i,
 		return -EINVAL;
 
 	if (riov)
-		riov->i = riov->used = 0;
+		riov->i = riov->used = riov->consumed = 0;
 	if (wiov)
-		wiov->i = wiov->used = 0;
+		wiov->i = wiov->used = wiov->consumed = 0;
 
 	for (;;) {
 		void *addr;