diff options
Diffstat (limited to 'drivers/net/macvtap.c')
| -rw-r--r-- | drivers/net/macvtap.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index 070e3290aa6e..19d81ca3fb49 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -673,7 +673,6 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m, int depth; bool zerocopy = false; size_t linear; - ssize_t n; if (q->flags & IFF_VNET_HDR) { vnet_hdr_len = q->vnet_hdr_sz; @@ -684,8 +683,7 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m, len -= vnet_hdr_len; err = -EFAULT; - n = copy_from_iter(&vnet_hdr, sizeof(vnet_hdr), from); - if (n != sizeof(vnet_hdr)) + if (!copy_from_iter_full(&vnet_hdr, sizeof(vnet_hdr), from)) goto err; iov_iter_advance(from, vnet_hdr_len - sizeof(vnet_hdr)); if ((vnet_hdr.flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) && |