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/input/tablet/acecad.c b/drivers/input/tablet/acecad.c
index 670c61c5a516..c0470163dc67 100644
--- a/drivers/input/tablet/acecad.c
+++ b/drivers/input/tablet/acecad.c
@@ -155,7 +155,7 @@ static int usb_acecad_probe(struct usb_interface *intf, const struct usb_device_
                 goto fail1;
         }
 
-        acecad->data = usb_buffer_alloc(dev, 8, GFP_KERNEL, &acecad->data_dma);
+        acecad->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &acecad->data_dma);
         if (!acecad->data) {
                 err= -ENOMEM;
                 goto fail1;
@@ -241,7 +241,7 @@ static int usb_acecad_probe(struct usb_interface *intf, const struct usb_device_
 
         return 0;
 
- fail2: usb_buffer_free(dev, 8, acecad->data, acecad->data_dma);
+ fail2: usb_free_coherent(dev, 8, acecad->data, acecad->data_dma);
  fail1: input_free_device(input_dev);
         kfree(acecad);
         return err;
@@ -256,7 +256,7 @@ static void usb_acecad_disconnect(struct usb_interface *intf)
                 usb_kill_urb(acecad->irq);
                 input_unregister_device(acecad->input);
                 usb_free_urb(acecad->irq);
-                usb_buffer_free(interface_to_usbdev(intf), 10, acecad->data, acecad->data_dma);
+                usb_free_coherent(interface_to_usbdev(intf), 10, acecad->data, acecad->data_dma);
                 kfree(acecad);
         }
 }