diff options
| author | Felipe Balbi <balbi@ti.com> | 2014-11-10 08:56:40 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-14 08:48:00 -0800 |
| commit | 1786a65707397a5670998eb3c217179b2e3db8f5 (patch) | |
| tree | f501c96b7357773637ff3007b1667667578e5a1c /drivers/usb/gadget | |
| parent | 7d5137586f7ce78e2ac5e11e2f9bfe9a12a4c496 (diff) | |
usb: gadget: function: acm: make f_acm pass USB20CV Chapter9
[ Upstream commit 52ec49a5e56a27c5b6f8217708783eff39f24c16 ]
During Halt Endpoint Test, our interrupt endpoint
will be disabled, which will clear out ep->desc
to NULL. Unless we call config_ep_by_speed() again,
we will not be able to enable this endpoint which
will make us fail that test.
Fixes: f9c56cd (usb: gadget: Clear usb_endpoint_descriptor
inside the struct usb_ep on disable)
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/f_acm.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/usb/gadget/f_acm.c b/drivers/usb/gadget/f_acm.c index ab1065afbbd0..3384486c2884 100644 --- a/drivers/usb/gadget/f_acm.c +++ b/drivers/usb/gadget/f_acm.c @@ -430,11 +430,12 @@ static int acm_set_alt(struct usb_function *f, unsigned intf, unsigned alt) if (acm->notify->driver_data) { VDBG(cdev, "reset acm control interface %d\n", intf); usb_ep_disable(acm->notify); - } else { - VDBG(cdev, "init acm ctrl interface %d\n", intf); + } + + if (!acm->notify->desc) if (config_ep_by_speed(cdev->gadget, f, acm->notify)) return -EINVAL; - } + usb_ep_enable(acm->notify); acm->notify->driver_data = acm; |