usb: gadget: s3c2410_udc: Do not use integer for NULL

'req' being a pointer shouldn't be equated with 0.

Fixes the following compilation warning:
drivers/usb/gadget/s3c2410_udc.c:1299:13: warning:
Using plain integer as NULL pointer

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index e895ea1..b627c9b 100644 (file)
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -1296,7 +1296,7 @@ static int s3c2410_udc_queue(struct usb_ep *_ep, struct usb_request *_req,
        }
 
        /* pio or dma irq handler advances the queue. */
-       if (likely(req != 0))
+       if (likely(req))
                list_add_tail(&req->queue, &ep->queue);
 
        local_irq_restore(flags);