[PATCH 2/3] usb: gadget: f_midi: free usb request when done

From: Felipe F. Tonello
Date: Tue Sep 22 2015 - 15:00:19 EST


req->actual == req->length means that there is no data left to enqueue,
so free the request.

Signed-off-by: Felipe F. Tonello <eu@xxxxxxxxxxxxxxxxx>
---
drivers/usb/gadget/function/f_midi.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c
index edb84ca..e92aff5 100644
--- a/drivers/usb/gadget/function/f_midi.c
+++ b/drivers/usb/gadget/function/f_midi.c
@@ -258,7 +258,10 @@ f_midi_complete(struct usb_ep *ep, struct usb_request *req)
} else if (ep == midi->in_ep) {
/* Our transmit completed. See if there's more to go.
* f_midi_transmit eats req, don't queue it again. */
- f_midi_transmit(midi, req);
+ if (req->actual < req->length)
+ f_midi_transmit(midi, req);
+ else
+ free_ep_req(ep, req);
return;
}
break;
--
2.1.4

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