usb: dwc3: gadget: increase setup buffer size

We want to re-use that buffer for other USB
requests, so let's increase it to biggest
wMaxPacketSize for ep0 so it works for everything
we have in mind.

Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 158d396..49ee83e 100644 (file)
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2308,8 +2308,7 @@ int __devinit dwc3_gadget_init(struct dwc3 *dwc)
                goto err1;
        }
 
-       dwc->setup_buf = kzalloc(sizeof(*dwc->setup_buf) * 2,
-                       GFP_KERNEL);
+       dwc->setup_buf = kzalloc(512, GFP_KERNEL);
        if (!dwc->setup_buf) {
                dev_err(dwc->dev, "failed to allocate setup buffer\n");
                ret = -ENOMEM;