diff options
| author | Anton Altaparmakov <aia21@cantab.net> | 2006-02-24 09:06:36 +0000 |
|---|---|---|
| committer | Anton Altaparmakov <aia21@cantab.net> | 2006-02-24 09:06:36 +0000 |
| commit | fab8d6ddf6dee2608869005d45fe97f70e4f5bdd (patch) | |
| tree | fecf566e03a87b2a44c7f3363ddb5c0d4bebdca7 /drivers/usb/class/cdc-acm.c | |
| parent | 64419d93a5906600af5817ad0cae3c6ecf7fb389 (diff) | |
| parent | f52ee1410d563cd409b08822492273a5bc235821 (diff) | |
Merge branch 'master' of /home/src/linux-2.6/
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
| -rw-r--r-- | drivers/usb/class/cdc-acm.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index b9fd39fd1b5b3..97bdeb1c21816 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -1014,8 +1014,13 @@ static void acm_disconnect(struct usb_interface *intf) } down(&open_sem); + if (!usb_get_intfdata(intf)) { + up(&open_sem); + return; + } acm->dev = NULL; - usb_set_intfdata (intf, NULL); + usb_set_intfdata(acm->control, NULL); + usb_set_intfdata(acm->data, NULL); tasklet_disable(&acm->urb_task); @@ -1036,7 +1041,7 @@ static void acm_disconnect(struct usb_interface *intf) for (i = 0; i < ACM_NRB; i++) usb_buffer_free(usb_dev, acm->readsize, acm->rb[i].base, acm->rb[i].dma); - usb_driver_release_interface(&acm_driver, acm->data); + usb_driver_release_interface(&acm_driver, intf == acm->control ? acm->data : intf); if (!acm->used) { acm_tty_unregister(acm); |