USB: rename usb_buffer_alloc() and usb_buffer_free() users

For more clearance what the functions actually do,

  usb_buffer_alloc() is renamed to usb_alloc_coherent()
  usb_buffer_free()  is renamed to usb_free_coherent()

They should only be used in code which really needs DMA coherency.

All call sites have been changed accordingly, except for staging
drivers.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Pedro Ribeiro <pedrib@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
index 094f91cbc578..1fa6ce3e4a23 100644
--- a/drivers/usb/misc/appledisplay.c
+++ b/drivers/usb/misc/appledisplay.c
@@ -259,7 +259,7 @@ static int appledisplay_probe(struct usb_interface *iface,
         }
 
         /* Allocate buffer for interrupt data */
-        pdata->urbdata = usb_buffer_alloc(pdata->udev, ACD_URB_BUFFER_LEN,
+        pdata->urbdata = usb_alloc_coherent(pdata->udev, ACD_URB_BUFFER_LEN,
                 GFP_KERNEL, &pdata->urb->transfer_dma);
         if (!pdata->urbdata) {
                 retval = -ENOMEM;
@@ -316,7 +316,7 @@ error:
                 if (pdata->urb) {
                         usb_kill_urb(pdata->urb);
                         if (pdata->urbdata)
-                                usb_buffer_free(pdata->udev, ACD_URB_BUFFER_LEN,
+                                usb_free_coherent(pdata->udev, ACD_URB_BUFFER_LEN,
                                         pdata->urbdata, pdata->urb->transfer_dma);
                         usb_free_urb(pdata->urb);
                 }
@@ -337,7 +337,7 @@ static void appledisplay_disconnect(struct usb_interface *iface)
                 usb_kill_urb(pdata->urb);
                 cancel_delayed_work(&pdata->work);
                 backlight_device_unregister(pdata->bd);
-                usb_buffer_free(pdata->udev, ACD_URB_BUFFER_LEN,
+                usb_free_coherent(pdata->udev, ACD_URB_BUFFER_LEN,
                         pdata->urbdata, pdata->urb->transfer_dma);
                 usb_free_urb(pdata->urb);
                 kfree(pdata->msgdata);