[patch 3/6] Staging: gdm72xx: make "len" unsigned

[Dan Carpenter]

We had an underflow bug here and I think I fixed it but we may as
well be proactive and make "len" unsigned to be double sure.

Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/staging/gdm72xx/gdm_wimax.h 
b/drivers/staging/gdm72xx/gdm_wimax.h
index 3330cd79..ed12813 100644
--- a/drivers/staging/gdm72xx/gdm_wimax.h
+++ b/drivers/staging/gdm72xx/gdm_wimax.h
@@ -26,10 +26,10 @@
 struct phy_dev {
        void                    *priv_dev;
        struct net_device       *netdev;
-       int (*send_func)(void *priv_dev, void *data, int len,
+       int (*send_func)(void *priv_dev, void *data, size_t len,
                         void (*cb)(void *cb_data), void *cb_data);
        int (*rcv_func)(void *priv_dev,
-                       void (*cb)(void *cb_data, void *data, int len),
+                       void (*cb)(void *cb_data, void *data, size_t len),
                        void *cb_data);
 };
 
diff --git a/drivers/staging/gdm72xx/gdm_usb.h 
b/drivers/staging/gdm72xx/gdm_usb.h
index d864928..1456da0 100644
--- a/drivers/staging/gdm72xx/gdm_usb.h
+++ b/drivers/staging/gdm72xx/gdm_usb.h
@@ -49,7 +49,7 @@ struct usb_rx {
        struct rx_cxt           *rx_cxt;
        struct urb              *urb;
        u8                      *buf;
-       void (*callback)(void *cb_data, void *data, int len);
+       void (*callback)(void *cb_data, void *data, size_t len);
        void *cb_data;
 };
 
diff --git a/drivers/staging/gdm72xx/gdm_usb.c 
b/drivers/staging/gdm72xx/gdm_usb.c
index 7f035b1..bbf3e70 100644
--- a/drivers/staging/gdm72xx/gdm_usb.c
+++ b/drivers/staging/gdm72xx/gdm_usb.c
@@ -284,7 +284,7 @@ static void gdm_usb_send_complete(struct urb *urb)
        spin_unlock_irqrestore(&tx->lock, flags);
 }
 
-static int gdm_usb_send(void *priv_dev, void *data, int len,
+static int gdm_usb_send(void *priv_dev, void *data, size_t len,
                        void (*cb)(void *data), void *cb_data)
 {
        struct usbwm_dev *udev = priv_dev;
@@ -341,7 +341,7 @@ static int gdm_usb_send(void *priv_dev, void *data, int len,
        usb_fill_bulk_urb(t->urb, usbdev, usb_sndbulkpipe(usbdev, 1), t->buf,
                          len + padding, gdm_usb_send_complete, t);
 
-       dev_dbg(&usbdev->dev, "usb_send: %*ph\n", len + padding, t->buf);
+       dev_dbg(&usbdev->dev, "usb_send: %*ph\n", (int)len + padding, t->buf);
 
 #ifdef CONFIG_WIMAX_GDM72XX_USB_PM
        if (usbdev->state & USB_STATE_SUSPENDED) {
@@ -460,7 +460,7 @@ static void gdm_usb_rcv_complete(struct urb *urb)
 }
 
 static int gdm_usb_receive(void *priv_dev,
-                          void (*cb)(void *cb_data, void *data, int len),
+                          void (*cb)(void *cb_data, void *data, size_t len),
                           void *cb_data)
 {
        struct usbwm_dev *udev = priv_dev;
diff --git a/drivers/staging/gdm72xx/gdm_wimax.c 
b/drivers/staging/gdm72xx/gdm_wimax.c
index 1b3da2b..6d647d6 100644
--- a/drivers/staging/gdm72xx/gdm_wimax.c
+++ b/drivers/staging/gdm72xx/gdm_wimax.c
@@ -701,7 +701,7 @@ static void gdm_wimax_transmit_pkt(struct net_device *dev, 
char *buf, int len)
        }
 }
 
-static void rx_complete(void *arg, void *data, int len)
+static void rx_complete(void *arg, void *data, size_t len)
 {
        struct nic *nic = arg;
 
@@ -709,7 +709,7 @@ static void rx_complete(void *arg, void *data, int len)
        gdm_wimax_rcv_with_cb(nic, rx_complete, nic);
 }
 
-static void prepare_rx_complete(void *arg, void *data, int len)
+static void prepare_rx_complete(void *arg, void *data, size_t len)
 {
        struct nic *nic = arg;
        int ret;
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