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usb: gadget: at91udc: Don't check for ep->ep.desc 

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@codeaurora.org>
Tested-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Tested-by: Mario Isidoro <Mario.Isidoro@tecmic.pt>
Cc: <stable@kernel.org> # v3.5
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Sebastian Andrzej Siewior 2012-07-20 20:34:25 +02:00 committed by Felipe Balbi
parent 8b7dda554c
commit f3bb8e63a8
1 changed files with 1 additions and 3 deletions
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4
drivers/usb/gadget/at91_udc.c
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@ -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;
/*