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OpenCloudOS-Kernel
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vringh: reset kiov 'consumed' field in __vringh_iov() 

__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>
Link: https://lore.kernel.org/r/20210315163450.254396-4-sgarzare@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Stefano Garzarella 2021-03-15 17:34:39 +01:00 committed by Michael S. Tsirkin
parent f53d9910d0
commit bbc2c372a8
1 changed files with 2 additions and 2 deletions
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4
drivers/vhost/vringh.c
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@ -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;