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/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c
index 8e4eacc5bb52..748a74bd85e7 100644
--- a/drivers/watchdog/pcwd_usb.c
+++ b/drivers/watchdog/pcwd_usb.c
@@ -600,8 +600,8 @@ static inline void usb_pcwd_delete(struct usb_pcwd_private *usb_pcwd)
 {
         usb_free_urb(usb_pcwd->intr_urb);
         if (usb_pcwd->intr_buffer != NULL)
-                usb_buffer_free(usb_pcwd->udev, usb_pcwd->intr_size,
-                                usb_pcwd->intr_buffer, usb_pcwd->intr_dma);
+                usb_free_coherent(usb_pcwd->udev, usb_pcwd->intr_size,
+                                  usb_pcwd->intr_buffer, usb_pcwd->intr_dma);
         kfree(usb_pcwd);
 }
 
@@ -671,7 +671,7 @@ static int usb_pcwd_probe(struct usb_interface *interface,
                                 le16_to_cpu(endpoint->wMaxPacketSize) : 8);
 
         /* set up the memory buffer's */
-        usb_pcwd->intr_buffer = usb_buffer_alloc(udev, usb_pcwd->intr_size,
+        usb_pcwd->intr_buffer = usb_alloc_coherent(udev, usb_pcwd->intr_size,
                                         GFP_ATOMIC, &usb_pcwd->intr_dma);
         if (!usb_pcwd->intr_buffer) {
                 printk(KERN_ERR PFX "Out of memory\n");