Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753341AbbKJRyy (ORCPT ); Tue, 10 Nov 2015 12:54:54 -0500 Received: from mail-wm0-f46.google.com ([74.125.82.46]:35427 "EHLO mail-wm0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752662AbbKJRwM (ORCPT ); Tue, 10 Nov 2015 12:52:12 -0500 From: "Felipe F. Tonello" To: linux-usb@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Felipe Balbi , Greg Kroah-Hartman , Robert Baldyga , Clemens Ladisch Subject: [PATCH v5 1/7] usb: gadget: f_midi: Transmit data only when IN ep is enabled Date: Tue, 10 Nov 2015 17:52:03 +0000 Message-Id: <1447177929-22252-2-git-send-email-eu@felipetonello.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1447177929-22252-1-git-send-email-eu@felipetonello.com> References: <1447177929-22252-1-git-send-email-eu@felipetonello.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 959 Lines: 29 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 --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/