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authorDavid S. Miller <davem@davemloft.net>2017-08-10 12:11:16 -0700
committerDavid S. Miller <davem@davemloft.net>2017-08-10 12:11:16 -0700
commit3b2b69efeca734b78bc85fd02253b0465bb2bec7 (patch)
tree57fd8b5b0e9c04f24f5f9ec70ceb0a706cecfb47 /net/packet/af_packet.c
parent2e2d5d767c9ddb2b10d74f2c20a257101c7070eb (diff)
parent26273939ace935dd7553b31d279eab30b40f7b9a (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Mainline had UFO fixes, but UFO is removed in net-next so we take the HEAD hunks. Minor context conflict in bcmsysport statistics bug fix. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/packet/af_packet.c')
-rw-r--r--net/packet/af_packet.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 5a178047a7ce..f31cb71172e0 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -3698,14 +3698,19 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
if (optlen != sizeof(val))
return -EINVAL;
- if (po->rx_ring.pg_vec || po->tx_ring.pg_vec)
- return -EBUSY;
if (copy_from_user(&val, optval, sizeof(val)))
return -EFAULT;
if (val > INT_MAX)
return -EINVAL;
- po->tp_reserve = val;
- return 0;
+ lock_sock(sk);
+ if (po->rx_ring.pg_vec || po->tx_ring.pg_vec) {
+ ret = -EBUSY;
+ } else {
+ po->tp_reserve = val;
+ ret = 0;
+ }
+ release_sock(sk);
+ return ret;
}
case PACKET_LOSS:
{