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USB: rename usb_buffer_alloc() and usb_buffer_free() users

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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>
This commit is contained in:
Daniel Mack
2010-04-12 13:17:25 +02:00
committed by Greg Kroah-Hartman
parent 48679c6d77
commit 997ea58eb9
51 changed files with 286 additions and 291 deletions
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38
drivers/usb/class/cdc-wdm.c
View File

@@ -276,14 +276,14 @@ static void free_urbs(struct wdm_device *desc)
static void cleanup(struct wdm_device *desc)
{
usb_buffer_free(interface_to_usbdev(desc->intf),
desc->wMaxPacketSize,
desc->sbuf,
desc->validity->transfer_dma);
usb_buffer_free(interface_to_usbdev(desc->intf),
desc->wMaxCommand,
desc->inbuf,
desc->response->transfer_dma);
usb_free_coherent(interface_to_usbdev(desc->intf),
desc->wMaxPacketSize,
desc->sbuf,
desc->validity->transfer_dma);
usb_free_coherent(interface_to_usbdev(desc->intf),
desc->wMaxCommand,
desc->inbuf,
desc->response->transfer_dma);
kfree(desc->orq);
kfree(desc->irq);
kfree(desc->ubuf);
@@ -705,17 +705,17 @@ next_desc:
if (!desc->ubuf)
goto err;
desc->sbuf = usb_buffer_alloc(interface_to_usbdev(intf),
desc->sbuf = usb_alloc_coherent(interface_to_usbdev(intf),
desc->wMaxPacketSize,
GFP_KERNEL,
&desc->validity->transfer_dma);
if (!desc->sbuf)
goto err;
desc->inbuf = usb_buffer_alloc(interface_to_usbdev(intf),
desc->bMaxPacketSize0,
GFP_KERNEL,
&desc->response->transfer_dma);
desc->inbuf = usb_alloc_coherent(interface_to_usbdev(intf),
desc->bMaxPacketSize0,
GFP_KERNEL,
&desc->response->transfer_dma);
if (!desc->inbuf)
goto err2;
@@ -742,15 +742,15 @@ out:
return rv;
err3:
usb_set_intfdata(intf, NULL);
usb_buffer_free(interface_to_usbdev(desc->intf),
desc->bMaxPacketSize0,
usb_free_coherent(interface_to_usbdev(desc->intf),
desc->bMaxPacketSize0,
desc->inbuf,
desc->response->transfer_dma);
err2:
usb_buffer_free(interface_to_usbdev(desc->intf),
desc->wMaxPacketSize,
desc->sbuf,
desc->validity->transfer_dma);
usb_free_coherent(interface_to_usbdev(desc->intf),
desc->wMaxPacketSize,
desc->sbuf,
desc->validity->transfer_dma);
err:
free_urbs(desc);
kfree(desc->ubuf);