diff options
| -rw-r--r-- | net/core/netpoll.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 6ad84d4a2b46..63477a6dd6e9 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -831,6 +831,13 @@ put_noaddr: if (err) goto flush; rtnl_unlock(); + + /* Make sure all NAPI polls which started before dev->npinfo + * was visible have exited before we start calling NAPI poll. + * NAPI skips locking if dev->npinfo is NULL. + */ + synchronize_rcu(); + return 0; flush: |