[13/28] usb: gadget: function: uac2: prevent double ep disable

Message ID 1413565804-13061-14-git-send-email-balbi@ti.com
State Accepted
Commit f3bb7b298120df8a9b7354e4f6d07e3185c15db7
Headers show

Commit Message

Felipe Balbi Oct. 17, 2014, 5:09 p.m.
without this check, f_uac2 would try to disable
the same endpoint twice. Fix that.

Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/function/f_uac2.c | 3 +++
 1 file changed, 3 insertions(+)

Patch

diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c
index fa51118..1146f4d 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++) {