diff options
| author | Andreas Eversberg <andreas@eversberg.eu> | 2008-09-14 14:42:18 +0200 |
|---|---|---|
| committer | Karsten Keil <kkeil@suse.de> | 2009-01-09 22:44:27 +0100 |
| commit | 9a812553bdc097a566aa79df7fae3457449c555b (patch) | |
| tree | 583d34c7c743730775cd186f1b3e856bf1f97c90 /drivers/isdn/mISDN/socket.c | |
| parent | 1b4d33121f1d991f6ae226cc3333428ff87627bb (diff) | |
| download | linux-9a812553bdc097a566aa79df7fae3457449c555b.tar.gz linux-9a812553bdc097a566aa79df7fae3457449c555b.tar.bz2 linux-9a812553bdc097a566aa79df7fae3457449c555b.zip | |
mISDN: Correct busy device detection
Correct busy device detection.
This fix belongs to last commit.
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <kkeil@suse.de>
Diffstat (limited to 'drivers/isdn/mISDN/socket.c')
| -rw-r--r-- | drivers/isdn/mISDN/socket.c | 30 |
1 files changed, 16 insertions, 14 deletions
diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index 916569ca156d..508945d1b9c1 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -483,22 +483,24 @@ data_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_len) goto done; } - read_lock_bh(&data_sockets.lock); - sk_for_each(csk, node, &data_sockets.head) { - if (sk == csk) - continue; - if (_pms(csk)->dev != _pms(sk)->dev) - continue; - if (csk->sk_protocol >= ISDN_P_B_START) - continue; - if (IS_ISDN_P_TE(csk->sk_protocol) - == IS_ISDN_P_TE(sk->sk_protocol)) - continue; + if (sk->sk_protocol < ISDN_P_B_START) { + read_lock_bh(&data_sockets.lock); + sk_for_each(csk, node, &data_sockets.head) { + if (sk == csk) + continue; + if (_pms(csk)->dev != _pms(sk)->dev) + continue; + if (csk->sk_protocol >= ISDN_P_B_START) + continue; + if (IS_ISDN_P_TE(csk->sk_protocol) + == IS_ISDN_P_TE(sk->sk_protocol)) + continue; + read_unlock_bh(&data_sockets.lock); + err = -EBUSY; + goto done; + } read_unlock_bh(&data_sockets.lock); - err = -EBUSY; - goto done; } - read_unlock_bh(&data_sockets.lock); _pms(sk)->ch.send = mISDN_send; _pms(sk)->ch.ctrl = mISDN_ctrl; |