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, 6 insertions, 6 deletions

diff --git a/drivers/input/tablet/gtco.c b/drivers/input/tablet/gtco.c
index 866a9ee1af1a..8ea6afe2e992 100644
--- a/drivers/input/tablet/gtco.c
+++ b/drivers/input/tablet/gtco.c
@@ -850,8 +850,8 @@ static int gtco_probe(struct usb_interface *usbinterface,
         gtco->usbdev = usb_get_dev(interface_to_usbdev(usbinterface));
 
         /* Allocate some data for incoming reports */
-        gtco->buffer = usb_buffer_alloc(gtco->usbdev, REPORT_MAX_SIZE,
-                                        GFP_KERNEL, &gtco->buf_dma);
+        gtco->buffer = usb_alloc_coherent(gtco->usbdev, REPORT_MAX_SIZE,
+                                          GFP_KERNEL, &gtco->buf_dma);
         if (!gtco->buffer) {
                 err("No more memory for us buffers");
                 error = -ENOMEM;
@@ -982,8 +982,8 @@ static int gtco_probe(struct usb_interface *usbinterface,
  err_free_urb:
         usb_free_urb(gtco->urbinfo);
  err_free_buf:
-        usb_buffer_free(gtco->usbdev, REPORT_MAX_SIZE,
-                        gtco->buffer, gtco->buf_dma);
+        usb_free_coherent(gtco->usbdev, REPORT_MAX_SIZE,
+                          gtco->buffer, gtco->buf_dma);
  err_free_devs:
         input_free_device(input_dev);
         kfree(gtco);
@@ -1005,8 +1005,8 @@ static void gtco_disconnect(struct usb_interface *interface)
                 input_unregister_device(gtco->inputdevice);
                 usb_kill_urb(gtco->urbinfo);
                 usb_free_urb(gtco->urbinfo);
-                usb_buffer_free(gtco->usbdev, REPORT_MAX_SIZE,
-                                gtco->buffer, gtco->buf_dma);
+                usb_free_coherent(gtco->usbdev, REPORT_MAX_SIZE,
+                                  gtco->buffer, gtco->buf_dma);
                 kfree(gtco);
         }