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>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c
index 35cdc6a5a589..d8e785d4ad59 100644
--- 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);