From f3bb7b298120df8a9b7354e4f6d07e3185c15db7 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Mon, 29 Sep 2014 14:23:41 -0500 Subject: [PATCH] usb: gadget: function: uac2: prevent double ep disable without this check, f_uac2 would try to disable the same endpoint twice. Fix that. Signed-off-by: Felipe Balbi --- drivers/usb/gadget/function/f_uac2.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c index fa511180c241..1146f4d5f66d 100644 --- a/drivers/usb/gadget/function/f_uac2.c +++ b/drivers/usb/gadget/function/f_uac2.c @@ -951,6 +951,9 @@ free_ep(struct uac2_rtd_params *prm, struct usb_ep *ep) struct snd_uac2_chip *uac2 = prm->uac2; int i; + if (!prm->ep_enabled) + return; + prm->ep_enabled = false; for (i = 0; i < USB_XFERS; i++) { -- 2.20.1