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, 2 insertions, 2 deletions

diff --git a/drivers/media/video/au0828/au0828-video.c b/drivers/media/video/au0828/au0828-video.c
index 8c140c01c5e6..a2a0f79a84f3 100644
--- a/drivers/media/video/au0828/au0828-video.c
+++ b/drivers/media/video/au0828/au0828-video.c
@@ -177,7 +177,7 @@ void au0828_uninit_isoc(struct au0828_dev *dev)
                                 usb_unlink_urb(urb);
 
                         if (dev->isoc_ctl.transfer_buffer[i]) {
-                                usb_buffer_free(dev->usbdev,
+                                usb_free_coherent(dev->usbdev,
                                         urb->transfer_buffer_length,
                                         dev->isoc_ctl.transfer_buffer[i],
                                         urb->transfer_dma);
@@ -247,7 +247,7 @@ int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
                 }
                 dev->isoc_ctl.urb[i] = urb;
 
-                dev->isoc_ctl.transfer_buffer[i] = usb_buffer_alloc(dev->usbdev,
+                dev->isoc_ctl.transfer_buffer[i] = usb_alloc_coherent(dev->usbdev,
                         sb_size, GFP_KERNEL, &urb->transfer_dma);
                 if (!dev->isoc_ctl.transfer_buffer[i]) {
                         printk("unable to allocate %i bytes for transfer"