usbnet: dm9601: apply introduced usb command APIs

Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c
index e0433ce6ced7aedaf7d4e39d87aeb1c39c6a42de..3f554c1149f36d2cf3221ee38e4f02507d566ba7 100644 (file)
--- a/drivers/net/usb/dm9601.c
+++ b/drivers/net/usb/dm9601.c
@@ -56,27 +56,12 @@
 
 static int dm_read(struct usbnet *dev, u8 reg, u16 length, void *data)
 {
-       void *buf;
-       int err = -ENOMEM;
-
-       netdev_dbg(dev->net, "dm_read() reg=0x%02x length=%d\n", reg, length);
-
-       buf = kmalloc(length, GFP_KERNEL);
-       if (!buf)
-               goto out;
-
-       err = usb_control_msg(dev->udev,
-                             usb_rcvctrlpipe(dev->udev, 0),
-                             DM_READ_REGS,
-                             USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-                             0, reg, buf, length, USB_CTRL_SET_TIMEOUT);
-       if (err == length)
-               memcpy(data, buf, length);
-       else if (err >= 0)
+       int err;
+       err = usbnet_read_cmd(dev, DM_READ_REGS,
+                              USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+                              0, reg, data, length);
+       if(err != length && err >= 0)
                err = -EINVAL;
-       kfree(buf);
-
- out:
        return err;
 }
 
@@ -87,91 +72,29 @@ static int dm_read_reg(struct usbnet *dev, u8 reg, u8 *value)
 
 static int dm_write(struct usbnet *dev, u8 reg, u16 length, void *data)
 {
-       void *buf = NULL;
-       int err = -ENOMEM;
-
-       netdev_dbg(dev->net, "dm_write() reg=0x%02x, length=%d\n", reg, length);
+       int err;
+       err = usbnet_write_cmd(dev, DM_WRITE_REGS,
+                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+                               0, reg, data, length);
 
-       if (data) {
-               buf = kmemdup(data, length, GFP_KERNEL);
-               if (!buf)
-                       goto out;
-       }
-
-       err = usb_control_msg(dev->udev,
-                             usb_sndctrlpipe(dev->udev, 0),
-                             DM_WRITE_REGS,
-                             USB_DIR_OUT | USB_TYPE_VENDOR |USB_RECIP_DEVICE,
-                             0, reg, buf, length, USB_CTRL_SET_TIMEOUT);
-       kfree(buf);
        if (err >= 0 && err < length)
                err = -EINVAL;
- out:
        return err;
 }
 
 static int dm_write_reg(struct usbnet *dev, u8 reg, u8 value)
 {
-       netdev_dbg(dev->net, "dm_write_reg() reg=0x%02x, value=0x%02x\n",
-                  reg, value);
-       return usb_control_msg(dev->udev,
-                              usb_sndctrlpipe(dev->udev, 0),
-                              DM_WRITE_REG,
-                              USB_DIR_OUT | USB_TYPE_VENDOR |USB_RECIP_DEVICE,
-                              value, reg, NULL, 0, USB_CTRL_SET_TIMEOUT);
-}
-
-static void dm_write_async_callback(struct urb *urb)
-{
-       struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
-       int status = urb->status;
-
-       if (status < 0)
-               printk(KERN_DEBUG "dm_write_async_callback() failed with %d\n",
-                      status);
-
-       kfree(req);
-       usb_free_urb(urb);
+       return usbnet_write_cmd(dev, DM_WRITE_REGS,
+                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+                               value, reg, NULL, 0);
 }
 
 static void dm_write_async_helper(struct usbnet *dev, u8 reg, u8 value,
                                  u16 length, void *data)
 {
-       struct usb_ctrlrequest *req;
-       struct urb *urb;
-       int status;
-
-       urb = usb_alloc_urb(0, GFP_ATOMIC);
-       if (!urb) {
-               netdev_err(dev->net, "Error allocating URB in dm_write_async_helper!\n");
-               return;
-       }
-
-       req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
-       if (!req) {
-               netdev_err(dev->net, "Failed to allocate memory for control request\n");
-               usb_free_urb(urb);
-               return;
-       }
-
-       req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
-       req->bRequest = length ? DM_WRITE_REGS : DM_WRITE_REG;
-       req->wValue = cpu_to_le16(value);
-       req->wIndex = cpu_to_le16(reg);
-       req->wLength = cpu_to_le16(length);
-
-       usb_fill_control_urb(urb, dev->udev,
-                            usb_sndctrlpipe(dev->udev, 0),
-                            (void *)req, data, length,
-                            dm_write_async_callback, req);
-
-       status = usb_submit_urb(urb, GFP_ATOMIC);
-       if (status < 0) {
-               netdev_err(dev->net, "Error submitting the control message: status=%d\n",
-                          status);
-               kfree(req);
-               usb_free_urb(urb);
-       }
+       usbnet_write_cmd_async(dev, DM_WRITE_REGS,
+                              USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+                              value, reg, data, length);
 }
 
 static void dm_write_async(struct usbnet *dev, u8 reg, u16 length, void *data)