diff options
Diffstat (limited to 'net/ipv4/tcp_cong.c')
| -rw-r--r-- | net/ipv4/tcp_cong.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c index a9b0fb52a1ec..db47ac24d057 100644 --- a/net/ipv4/tcp_cong.c +++ b/net/ipv4/tcp_cong.c @@ -362,21 +362,14 @@ int tcp_set_congestion_control(struct sock *sk, const char *name, bool load, goto out; } - if (!ca) { + if (!ca) err = -ENOENT; - } else if (!load) { - if (bpf_try_module_get(ca, ca->owner)) { - tcp_reinit_congestion_control(sk, ca); - } else { - err = -EBUSY; - } - } else if (!((ca->flags & TCP_CONG_NON_RESTRICTED) || cap_net_admin)) { + else if (!((ca->flags & TCP_CONG_NON_RESTRICTED) || cap_net_admin)) err = -EPERM; - } else if (!bpf_try_module_get(ca, ca->owner)) { + else if (!bpf_try_module_get(ca, ca->owner)) err = -EBUSY; - } else { + else tcp_reinit_congestion_control(sk, ca); - } out: rcu_read_unlock(); return err; |