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>

2 files changed, 18 insertions, 18 deletions

diff --git a/drivers/input/mouse/appletouch.c b/drivers/input/mouse/appletouch.c
index 53ec7ddd1826..05edd75abca0 100644
--- a/drivers/input/mouse/appletouch.c
+++ b/drivers/input/mouse/appletouch.c
@@ -806,8 +806,8 @@ static int atp_probe(struct usb_interface *iface,
         if (!dev->urb)
                 goto err_free_devs;
 
-        dev->data = usb_buffer_alloc(dev->udev, dev->info->datalen, GFP_KERNEL,
-                                     &dev->urb->transfer_dma);
+        dev->data = usb_alloc_coherent(dev->udev, dev->info->datalen, GFP_KERNEL,
+                                       &dev->urb->transfer_dma);
         if (!dev->data)
                 goto err_free_urb;
 
@@ -862,8 +862,8 @@ static int atp_probe(struct usb_interface *iface,
         return 0;
 
  err_free_buffer:
-        usb_buffer_free(dev->udev, dev->info->datalen,
-                        dev->data, dev->urb->transfer_dma);
+        usb_free_coherent(dev->udev, dev->info->datalen,
+                          dev->data, dev->urb->transfer_dma);
  err_free_urb:
         usb_free_urb(dev->urb);
  err_free_devs:
@@ -881,8 +881,8 @@ static void atp_disconnect(struct usb_interface *iface)
         if (dev) {
                 usb_kill_urb(dev->urb);
                 input_unregister_device(dev->input);
-                usb_buffer_free(dev->udev, dev->info->datalen,
-                                dev->data, dev->urb->transfer_dma);
+                usb_free_coherent(dev->udev, dev->info->datalen,
+                                  dev->data, dev->urb->transfer_dma);
                 usb_free_urb(dev->urb);
                 kfree(dev);
         }
diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index b89879bd860f..6dedded27222 100644
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -715,15 +715,15 @@ static int bcm5974_probe(struct usb_interface *iface,
         if (!dev->tp_urb)
                 goto err_free_bt_urb;
 
-        dev->bt_data = usb_buffer_alloc(dev->udev,
-                                        dev->cfg.bt_datalen, GFP_KERNEL,
-                                        &dev->bt_urb->transfer_dma);
+        dev->bt_data = usb_alloc_coherent(dev->udev,
+                                          dev->cfg.bt_datalen, GFP_KERNEL,
+                                          &dev->bt_urb->transfer_dma);
         if (!dev->bt_data)
                 goto err_free_urb;
 
-        dev->tp_data = usb_buffer_alloc(dev->udev,
-                                        dev->cfg.tp_datalen, GFP_KERNEL,
-                                        &dev->tp_urb->transfer_dma);
+        dev->tp_data = usb_alloc_coherent(dev->udev,
+                                          dev->cfg.tp_datalen, GFP_KERNEL,
+                                          &dev->tp_urb->transfer_dma);
         if (!dev->tp_data)
                 goto err_free_bt_buffer;
 
@@ -765,10 +765,10 @@ static int bcm5974_probe(struct usb_interface *iface,
         return 0;
 
 err_free_buffer:
-        usb_buffer_free(dev->udev, dev->cfg.tp_datalen,
+        usb_free_coherent(dev->udev, dev->cfg.tp_datalen,
                 dev->tp_data, dev->tp_urb->transfer_dma);
 err_free_bt_buffer:
-        usb_buffer_free(dev->udev, dev->cfg.bt_datalen,
+        usb_free_coherent(dev->udev, dev->cfg.bt_datalen,
                 dev->bt_data, dev->bt_urb->transfer_dma);
 err_free_urb:
         usb_free_urb(dev->tp_urb);
@@ -788,10 +788,10 @@ static void bcm5974_disconnect(struct usb_interface *iface)
         usb_set_intfdata(iface, NULL);
 
         input_unregister_device(dev->input);
-        usb_buffer_free(dev->udev, dev->cfg.tp_datalen,
-                        dev->tp_data, dev->tp_urb->transfer_dma);
-        usb_buffer_free(dev->udev, dev->cfg.bt_datalen,
-                        dev->bt_data, dev->bt_urb->transfer_dma);
+        usb_free_coherent(dev->udev, dev->cfg.tp_datalen,
+                          dev->tp_data, dev->tp_urb->transfer_dma);
+        usb_free_coherent(dev->udev, dev->cfg.bt_datalen,
+                          dev->bt_data, dev->bt_urb->transfer_dma);
         usb_free_urb(dev->tp_urb);
         usb_free_urb(dev->bt_urb);
         kfree(dev);