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Commit f0f1b8ca authored by Felipe F. Tonello's avatar Felipe F. Tonello Committed by Felipe Balbi
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usb: gadget: f_midi: fail if set_alt fails to allocate requests 



This ensures that the midi function will only work if the proper number of
IN and OUT requrests are allocated. Otherwise the function will work with less
requests then what the user wants.

Signed-off-by: default avatarFelipe F. Tonello <eu@felipetonello.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 919de443

drivers/usb/gadget/function/f_midi.c

+2 −1
Original line number Original line Diff line number Diff line
@@ -344,9 +344,10 @@ static int f_midi_set_alt(struct usb_function *f, unsigned intf, unsigned alt) 
		req->complete = f_midi_complete;

		req->complete = f_midi_complete;

		err = usb_ep_queue(midi->out_ep, req, GFP_ATOMIC);

		err = usb_ep_queue(midi->out_ep, req, GFP_ATOMIC);

		if (err) {

		if (err) {

			ERROR(midi, "%s queue req: %d\n",

			ERROR(midi, "%s: couldn't enqueue request: %d\n",

				    midi->out_ep->name, err);

				    midi->out_ep->name, err);

			free_ep_req(midi->out_ep, req);

			free_ep_req(midi->out_ep, req);

			return err;

		}

		}

	}

	}