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usb: gadget: f_midi: Transmit data only when IN ep is enabled 

This makes sure f_midi doesn't try to enqueue data when the IN endpoint is
disabled, ie, USB cable is disconnected.

Reviewed-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe F. Tonello <eu@felipetonello.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe F. Tonello 2015-11-10 17:52:03 +00:00 committed by Felipe Balbi
parent 8aa90cf2a2
commit e9ca7e4bb3
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/gadget/function/f_midi.c
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@ -545,7 +545,7 @@ static void f_midi_transmit(struct f_midi *midi, struct usb_request *req)
}
}
if (req->length > 0) {
if (req->length > 0 && ep->enabled) {
int err;
err = usb_ep_queue(ep, req, GFP_ATOMIC);