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| author | Jan Kiszka <jan.kiszka@web.de> | 2010-02-08 10:12:24 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-02-16 16:01:26 -0800 |
| commit | e76b1544074b5fc7983a21fb1f51a7faf03d3179 (patch) | |
| tree | bbea37776ed94f4dbc9eb5cfb2bdb772d33e8611 /drivers/isdn/capi/capi.c | |
| parent | 81d17fe5e29d863027824928e1c336baa9abfee9 (diff) | |
| download | blackbird-op-linux-e76b1544074b5fc7983a21fb1f51a7faf03d3179.tar.gz blackbird-op-linux-e76b1544074b5fc7983a21fb1f51a7faf03d3179.zip | |
CAPI: Clean up capinc_tty_init/exit
Return proper error code if tty_register_driver fails. In contrast,
tty_unregister_driver cannot practically fail, so drop that error
handling. Finally, mark capinc_tty_init/exit with __init/__exit.
Signed-off-by: Jan Kiszka <jan.kiszka@web.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/isdn/capi/capi.c')
| -rw-r--r-- | drivers/isdn/capi/capi.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c index 46f85ae85f5f..c22b34976c24 100644 --- a/drivers/isdn/capi/capi.c +++ b/drivers/isdn/capi/capi.c @@ -1307,10 +1307,11 @@ static const struct tty_operations capinc_ops = { .send_xchar = capinc_tty_send_xchar, }; -static int capinc_tty_init(void) +static int __init capinc_tty_init(void) { struct tty_driver *drv; - + int err; + if (capi_ttyminors > CAPINC_MAX_PORTS) capi_ttyminors = CAPINC_MAX_PORTS; if (capi_ttyminors <= 0) @@ -1340,23 +1341,22 @@ static int capinc_tty_init(void) drv->init_termios.c_lflag = 0; drv->flags = TTY_DRIVER_REAL_RAW|TTY_DRIVER_RESET_TERMIOS; tty_set_operations(drv, &capinc_ops); - if (tty_register_driver(drv)) { + + err = tty_register_driver(drv); + if (err) { put_tty_driver(drv); kfree(capiminors); printk(KERN_ERR "Couldn't register capi_nc driver\n"); - return -1; + return err; } capinc_tty_driver = drv; return 0; } -static void capinc_tty_exit(void) +static void __exit capinc_tty_exit(void) { - struct tty_driver *drv = capinc_tty_driver; - int retval; - if ((retval = tty_unregister_driver(drv))) - printk(KERN_ERR "capi: failed to unregister capi_nc driver (%d)\n", retval); - put_tty_driver(drv); + tty_unregister_driver(capinc_tty_driver); + put_tty_driver(capinc_tty_driver); kfree(capiminors); } |
