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, 8 insertions, 8 deletions

diff --git a/drivers/media/video/usbvision/usbvision-core.c b/drivers/media/video/usbvision/usbvision-core.c
index f7aae2293758..b9dd74fde212 100644
--- a/drivers/media/video/usbvision/usbvision-core.c
+++ b/drivers/media/video/usbvision/usbvision-core.c
@@ -2493,10 +2493,10 @@ int usbvision_init_isoc(struct usb_usbvision *usbvision)
                 }
                 usbvision->sbuf[bufIdx].urb = urb;
                 usbvision->sbuf[bufIdx].data =
-                        usb_buffer_alloc(usbvision->dev,
-                                         sb_size,
-                                         GFP_KERNEL,
-                                         &urb->transfer_dma);
+                        usb_alloc_coherent(usbvision->dev,
+                                           sb_size,
+                                           GFP_KERNEL,
+                                           &urb->transfer_dma);
                 urb->dev = dev;
                 urb->context = usbvision;
                 urb->pipe = usb_rcvisocpipe(dev, usbvision->video_endp);
@@ -2552,10 +2552,10 @@ void usbvision_stop_isoc(struct usb_usbvision *usbvision)
         for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) {
                 usb_kill_urb(usbvision->sbuf[bufIdx].urb);
                 if (usbvision->sbuf[bufIdx].data){
-                        usb_buffer_free(usbvision->dev,
-                                        sb_size,
-                                        usbvision->sbuf[bufIdx].data,
-                                        usbvision->sbuf[bufIdx].urb->transfer_dma);
+                        usb_free_coherent(usbvision->dev,
+                                          sb_size,
+                                          usbvision->sbuf[bufIdx].data,
+                                          usbvision->sbuf[bufIdx].urb->transfer_dma);
                 }
                 usb_free_urb(usbvision->sbuf[bufIdx].urb);
                 usbvision->sbuf[bufIdx].urb = NULL;