diff options
| author | Bob Peterson <rpeterso@redhat.com> | 2018-01-19 00:17:13 +0300 |
|---|---|---|
| committer | Bob Peterson <rpeterso@redhat.com> | 2018-01-19 00:17:13 +0300 |
| commit | 786ebd9f68cdf512f389e5f2d0015f1beb0777d8 (patch) | |
| tree | b4bae82884c2232f891aec11e58b38eb4fec5e5d /drivers/net/tap.c | |
| parent | 1f23bc7869fffec40b8bd9333a74a18d1de54d98 (diff) | |
| parent | 4e56a6411fbce6f859566e17298114c2434391a4 (diff) | |
| download | linux-786ebd9f68cdf512f389e5f2d0015f1beb0777d8.tar.xz | |
Merge branch 'punch-hole' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git
Diffstat (limited to 'drivers/net/tap.c')
| -rw-r--r-- | drivers/net/tap.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/net/tap.c b/drivers/net/tap.c index e9489b88407c..0a886fda0129 100644 --- a/drivers/net/tap.c +++ b/drivers/net/tap.c @@ -829,8 +829,11 @@ static ssize_t tap_do_read(struct tap_queue *q, DEFINE_WAIT(wait); ssize_t ret = 0; - if (!iov_iter_count(to)) + if (!iov_iter_count(to)) { + if (skb) + kfree_skb(skb); return 0; + } if (skb) goto put; @@ -1154,11 +1157,14 @@ static int tap_recvmsg(struct socket *sock, struct msghdr *m, size_t total_len, int flags) { struct tap_queue *q = container_of(sock, struct tap_queue, sock); + struct sk_buff *skb = m->msg_control; int ret; - if (flags & ~(MSG_DONTWAIT|MSG_TRUNC)) + if (flags & ~(MSG_DONTWAIT|MSG_TRUNC)) { + if (skb) + kfree_skb(skb); return -EINVAL; - ret = tap_do_read(q, &m->msg_iter, flags & MSG_DONTWAIT, - m->msg_control); + } + ret = tap_do_read(q, &m->msg_iter, flags & MSG_DONTWAIT, skb); if (ret > total_len) { m->msg_flags |= MSG_TRUNC; ret = flags & MSG_TRUNC ? ret : total_len; |