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, 7 insertions, 7 deletions

diff --git a/drivers/media/video/tlg2300/pd-video.c b/drivers/media/video/tlg2300/pd-video.c
index cf8f18c007e6..7bc29065e1ad 100644
--- a/drivers/media/video/tlg2300/pd-video.c
+++ b/drivers/media/video/tlg2300/pd-video.c
@@ -476,10 +476,10 @@ static int prepare_iso_urb(struct video_data *video)
                         goto out;
 
                 video->urb_array[i] = urb;
-                mem = usb_buffer_alloc(udev,
-                                        ISO_PKT_SIZE * PK_PER_URB,
-                                        GFP_KERNEL,
-                                        &urb->transfer_dma);
+                mem = usb_alloc_coherent(udev,
+                                         ISO_PKT_SIZE * PK_PER_URB,
+                                         GFP_KERNEL,
+                                         &urb->transfer_dma);
 
                 urb->complete   = urb_complete_iso;     /* handler */
                 urb->dev        = udev;
@@ -519,8 +519,8 @@ int alloc_bulk_urbs_generic(struct urb **urb_array, int num,
                 if (urb == NULL)
                         return i;
 
-                mem = usb_buffer_alloc(udev, buf_size, gfp_flags,
-                                        &urb->transfer_dma);
+                mem = usb_alloc_coherent(udev, buf_size, gfp_flags,
+                                         &urb->transfer_dma);
                 if (mem == NULL)
                         return i;
 
@@ -540,7 +540,7 @@ void free_all_urb_generic(struct urb **urb_array, int num)
         for (i = 0; i < num; i++) {
                 urb = urb_array[i];
                 if (urb) {
-                        usb_buffer_free(urb->dev,
+                        usb_free_coherent(urb->dev,
                                         urb->transfer_buffer_length,
                                         urb->transfer_buffer,
                                         urb->transfer_dma);