Earlier we used to check for ep->ep.desc to figure out if this ep has
already been enabled and if so, abort.
Ido Shayevitz removed the usb_endpoint_descriptor from private udc
structure 5a6506f00 ("usb: gadget: Update at91_udc to use
usb_endpoint_descriptor inside the struct usb_ep") but did not fix up
the ep_enable condition because _now_ the member is always true and we
can't check if this ep is enabled twice.
Cc: Ido Shayevitz <idos@xxxxxxxxxxxxxx>
Tested-by: Fabio Porcedda <fabio.porcedda@xxxxxxxxx>
Tested-by: Mario Isidoro <Mario.Isidoro@xxxxxxxxx>
Cc: <stable@xxxxxxxxxx> # v3.5
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
drivers/usb/gadget/at91_udc.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index 14df835..1e35963 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -475,8 +475,7 @@ static int at91_ep_enable(struct usb_ep *_ep,
unsigned long flags;
if (!_ep || !ep
- || !desc || ep->ep.desc
- || _ep->name == ep0name
+ || !desc || _ep->name == ep0name
|| desc->bDescriptorType != USB_DT_ENDPOINT
|| (maxpacket = usb_endpoint_maxp(desc)) == 0
|| maxpacket > ep->maxpacket) {
@@ -530,7 +529,6 @@ ok:
tmp |= AT91_UDP_EPEDS;
__raw_writel(tmp, ep->creg);
- ep->ep.desc = desc;
ep->ep.maxpacket = maxpacket;
/*
--
1.7.10.4
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