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Groups > linux.kernel > #1266675

[PATCH v5 1/7] usb: gadget: f_midi: Transmit data only when IN ep is enabled

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

Signed-off-by: Felipe F. Tonello <eu@felipetonello.com>
---
 drivers/usb/gadget/function/f_midi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c
index ce3c8a6..eeb989d 100644
--- a/drivers/usb/gadget/function/f_midi.c
+++ b/drivers/usb/gadget/function/f_midi.c
@@ -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);
-- 
2.5.0

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[PATCH v5 1/7] usb: gadget: f_midi: Transmit data only when IN ep is enabled "Felipe F. Tonello" <eu@felipetonello.com> - 2015-11-10 19:00 +0100
  Re: [PATCH v5 1/7] usb: gadget: f_midi: Transmit data only when IN ep  is enabled Robert Baldyga <r.baldyga@samsung.com> - 2015-11-13 09:10 +0100

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