diff options
Diffstat (limited to 'drivers/usb/gadget/function/f_acm.c')
| -rw-r--r-- | drivers/usb/gadget/function/f_acm.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/usb/gadget/function/f_acm.c b/drivers/usb/gadget/function/f_acm.c index 200596ea9557..46647bfac2ef 100644 --- a/drivers/usb/gadget/function/f_acm.c +++ b/drivers/usb/gadget/function/f_acm.c @@ -425,9 +425,11 @@ static int acm_set_alt(struct usb_function *f, unsigned intf, unsigned alt) /* we know alt == 0, so this is an activation or a reset */ if (intf == acm->ctrl_id) { - dev_vdbg(&cdev->gadget->dev, - "reset acm control interface %d\n", intf); - usb_ep_disable(acm->notify); + if (acm->notify->enabled) { + dev_vdbg(&cdev->gadget->dev, + "reset acm control interface %d\n", intf); + usb_ep_disable(acm->notify); + } if (!acm->notify->desc) if (config_ep_by_speed(cdev->gadget, f, acm->notify)) |