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>
diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index d3c8523..7dc9d3c 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -239,8 +239,8 @@
__func__, status);
}
/* free up our allocated buffer */
- usb_buffer_free(urb->dev, urb->transfer_buffer_length,
- urb->transfer_buffer, urb->transfer_dma);
+ usb_free_coherent(urb->dev, urb->transfer_buffer_length,
+ urb->transfer_buffer, urb->transfer_dma);
/* tell a waiting writer the interrupt-out-pipe is available again */
atomic_dec(&dev->write_busy);
wake_up_interruptible(&dev->write_wait);
@@ -421,8 +421,8 @@
dbg("%s Unable to allocate urb ", __func__);
goto error_no_urb;
}
- buf = usb_buffer_alloc(dev->udev, dev->report_size,
- GFP_KERNEL, &int_out_urb->transfer_dma);
+ buf = usb_alloc_coherent(dev->udev, dev->report_size,
+ GFP_KERNEL, &int_out_urb->transfer_dma);
if (!buf) {
retval = -ENOMEM;
dbg("%s Unable to allocate buffer ", __func__);
@@ -459,8 +459,8 @@
break;
}
error:
- usb_buffer_free(dev->udev, dev->report_size, buf,
- int_out_urb->transfer_dma);
+ usb_free_coherent(dev->udev, dev->report_size, buf,
+ int_out_urb->transfer_dma);
error_no_buffer:
usb_free_urb(int_out_urb);
error_no_urb:
