usb: gadget: s3c-hsudc: Replace 0 with NULL for pointers

Silences the following type of sparse warnings:
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/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c
index 35cdc6a5a5898dcfdeee8030dbc2f781355f9c5e..d8e785d4ad590cd0797d51da6de54dda39853e1f 100644 (file)
--- a/drivers/usb/gadget/s3c-hsudc.c
+++ b/drivers/usb/gadget/s3c-hsudc.c
@@ -835,7 +835,7 @@ static struct usb_request *s3c_hsudc_alloc_request(struct usb_ep *_ep,
 
        hsreq = kzalloc(sizeof(*hsreq), gfp_flags);
        if (!hsreq)
-               return 0;
+               return NULL;
 
        INIT_LIST_HEAD(&hsreq->queue);
        return &hsreq->req;
@@ -904,16 +904,16 @@ static int s3c_hsudc_queue(struct usb_ep *_ep, struct usb_request *_req,
                        csr = readl((u32)hsudc->regs + offset);
                        if (!(csr & S3C_ESR_TX_SUCCESS) &&
                                (s3c_hsudc_write_fifo(hsep, hsreq) == 1))
-                               hsreq = 0;
+                               hsreq = NULL;
                } else {
                        csr = readl((u32)hsudc->regs + offset);
                        if ((csr & S3C_ESR_RX_SUCCESS)
                                   && (s3c_hsudc_read_fifo(hsep, hsreq) == 1))
-                               hsreq = 0;
+                               hsreq = NULL;
                }
        }
 
-       if (hsreq != 0)
+       if (hsreq)
                list_add_tail(&hsreq->queue, &hsep->queue);
 
        spin_unlock_irqrestore(&hsudc->lock, flags);