diff options
| author | Jaroslav Kysela <perex@suse.cz> | 2006-02-01 13:08:56 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2006-02-01 13:08:56 +0100 |
| commit | 847b9d01474f710e7a018186917d05e59e258309 (patch) | |
| tree | c0da8777ce350c4b048aa6ed2c41fdd109c42e92 /drivers/usb/class/cdc-acm.c | |
| parent | d1d051b28e9d3c3bed0bd15a2b49df3d04f7768f (diff) | |
| parent | a6df590dd8b7644c8e298e3b13442bcd6ceeb739 (diff) | |
Merge with rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
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); |