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| author | Jason Gunthorpe <jgg@mellanox.com> | 2019-09-12 18:49:56 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-09-13 22:59:51 +0300 |
| commit | 75c66515e4fea4e9bb488b6125e014220f846c61 (patch) | |
| tree | a7a79ca9a05da74fd3fd74b1c8c3e1cb2901c167 /net/packet/af_packet.c | |
| parent | 1ba7c8f800586805c409f5b1ff1803318a41933a (diff) | |
| parent | f74c2bb98776e2de508f4d607cd519873065118e (diff) | |
| download | linux-75c66515e4fea4e9bb488b6125e014220f846c61.tar.xz | |
Merge tag 'v5.3-rc8' into rdma.git for-next
To resolve dependencies in following patches
mlx5_ib.h conflict resolved by keeing both hunks
Linux 5.3-rc8
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'net/packet/af_packet.c')
| -rw-r--r-- | net/packet/af_packet.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 8d54f3047768..e2742b006d25 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -2618,6 +2618,13 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg) mutex_lock(&po->pg_vec_lock); + /* packet_sendmsg() check on tx_ring.pg_vec was lockless, + * we need to confirm it under protection of pg_vec_lock. + */ + if (unlikely(!po->tx_ring.pg_vec)) { + err = -EBUSY; + goto out; + } if (likely(saddr == NULL)) { dev = packet_cached_dev_get(po); proto = po->num; |