diff options
| author | David S. Miller <davem@davemloft.net> | 2018-11-19 10:55:00 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-11-19 10:55:00 -0800 |
| commit | f2be6d710d25be7d8d13f49f713d69dea9c71d57 (patch) | |
| tree | 1b3dde663a53e7f4f7a8cc17674405dc9d29554a /net/can/raw.c | |
| parent | bae4e109837b419b93fbddcb414c86673b1c90a5 (diff) | |
| parent | f2ce1065e767fc7da106a5f5381d1e8f842dc6f4 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'net/can/raw.c')
| -rw-r--r-- | net/can/raw.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/net/can/raw.c b/net/can/raw.c index 1051eee82581..3aab7664933f 100644 --- a/net/can/raw.c +++ b/net/can/raw.c @@ -745,18 +745,19 @@ static int raw_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) } else ifindex = ro->ifindex; - if (ro->fd_frames) { + dev = dev_get_by_index(sock_net(sk), ifindex); + if (!dev) + return -ENXIO; + + err = -EINVAL; + if (ro->fd_frames && dev->mtu == CANFD_MTU) { if (unlikely(size != CANFD_MTU && size != CAN_MTU)) - return -EINVAL; + goto put_dev; } else { if (unlikely(size != CAN_MTU)) - return -EINVAL; + goto put_dev; } - dev = dev_get_by_index(sock_net(sk), ifindex); - if (!dev) - return -ENXIO; - skb = sock_alloc_send_skb(sk, size + sizeof(struct can_skb_priv), msg->msg_flags & MSG_DONTWAIT, &err); if (!skb) |