diff options
| author | Jeff Garzik <jgarzik@pobox.com> | 2006-02-09 04:29:00 -0500 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2006-02-09 04:29:00 -0500 |
| commit | 9caafa6c8686e319cf4d5f3757b3972c6c522b7c (patch) | |
| tree | b38979b835b5d22e681b175d0b98a3c7560d9c59 /drivers/usb/class/cdc-acm.c | |
| parent | 51e9f2ff83df6b1c81c5c44f4486c68ed87aa20e (diff) | |
| parent | cac0e8e8bb2e7a086643bdd00c41d900a79bb4fa (diff) | |
Merge branch 'upstream-fixes'
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 b9fd39fd1b5..97bdeb1c218 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); |