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| author |   Stefano Garzarella <sgarzare@redhat.com> | 2021-03-15 17:34:39 +0100 |
|---|---|---|
| committer |   Michael S. Tsirkin <mst@redhat.com> | 2021-05-03 04:55:53 -0400 |
| commit | bbc2c372a83d74d5499ad21d0ade2b71f5bde620 (patch) | |
| tree | fbd50a66ee0c0e155dc7a490ae41b6a66cffff6a /drivers/vhost/vringh.c | |
| parent | vringh: add 'iotlb_lock' to synchronize iotlb accesses (diff) | |
| download | linux-dev-bbc2c372a83d74d5499ad21d0ade2b71f5bde620.tar.xz linux-dev-bbc2c372a83d74d5499ad21d0ade2b71f5bde620.zip | |
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>
Diffstat (limited to 'drivers/vhost/vringh.c')
| -rw-r--r-- | drivers/vhost/vringh.c | 4 |
1 files changed, 2 insertions, 2 deletions
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; |