diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-25 10:05:37 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-25 10:05:37 -0700 |
| commit | 2849a3a945d0e440fa245c47c49c80ef1cc103c3 (patch) | |
| tree | 616868130f4b8a063cfa1c138135c10247a4da0e /drivers/usb/class/cdc-acm.c | |
| parent | 417c765af914106f5e76c4e0181dd555fe6a89a0 (diff) | |
| parent | 8bb9660418e05bb1845ac1a2428444d78e322cc7 (diff) | |
| download | linux-2849a3a945d0e440fa245c47c49c80ef1cc103c3.tar.gz | |
Merge 3.9-rc4 into usb-next
This picks up the fixes we had for USB in 3.9-rc4
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index d003c8ca00bc47..6d4e0b96f89d57 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -593,7 +593,6 @@ static void acm_port_destruct(struct tty_port *port) dev_dbg(&acm->control->dev, "%s\n", __func__); - tty_unregister_device(acm_tty_driver, acm->minor); acm_release_minor(acm); usb_put_intf(acm->control); kfree(acm->country_codes); @@ -969,6 +968,8 @@ static int acm_probe(struct usb_interface *intf, int num_rx_buf; int i; int combined_interfaces = 0; + struct device *tty_dev; + int rv = -ENOMEM; /* normal quirks */ quirks = (unsigned long)id->driver_info; @@ -1331,11 +1332,24 @@ skip_countries: usb_set_intfdata(data_interface, acm); usb_get_intf(control_interface); - tty_port_register_device(&acm->port, acm_tty_driver, minor, + tty_dev = tty_port_register_device(&acm->port, acm_tty_driver, minor, &control_interface->dev); + if (IS_ERR(tty_dev)) { + rv = PTR_ERR(tty_dev); + goto alloc_fail8; + } return 0; +alloc_fail8: + if (acm->country_codes) { + device_remove_file(&acm->control->dev, + &dev_attr_wCountryCodes); + device_remove_file(&acm->control->dev, + &dev_attr_iCountryCodeRelDate); + } + device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities); alloc_fail7: + usb_set_intfdata(intf, NULL); for (i = 0; i < ACM_NW; i++) usb_free_urb(acm->wb[i].urb); alloc_fail6: @@ -1351,7 +1365,7 @@ alloc_fail2: acm_release_minor(acm); kfree(acm); alloc_fail: - return -ENOMEM; + return rv; } static void stop_data_traffic(struct acm *acm) @@ -1403,6 +1417,8 @@ static void acm_disconnect(struct usb_interface *intf) stop_data_traffic(acm); + tty_unregister_device(acm_tty_driver, acm->minor); + usb_free_urb(acm->ctrlurb); for (i = 0; i < ACM_NW; i++) usb_free_urb(acm->wb[i].urb); |