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/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index f465025..191197c 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -556,8 +556,8 @@
goto fail1;
}
- wacom_wac->data = usb_buffer_alloc(dev, WACOM_PKGLEN_MAX,
- GFP_KERNEL, &wacom->data_dma);
+ wacom_wac->data = usb_alloc_coherent(dev, WACOM_PKGLEN_MAX,
+ GFP_KERNEL, &wacom->data_dma);
if (!wacom_wac->data) {
error = -ENOMEM;
goto fail1;
@@ -633,7 +633,7 @@
return 0;
fail3: usb_free_urb(wacom->irq);
- fail2: usb_buffer_free(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma);
+ fail2: usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma);
fail1: input_free_device(input_dev);
kfree(wacom);
kfree(wacom_wac);
@@ -649,8 +649,8 @@
usb_kill_urb(wacom->irq);
input_unregister_device(wacom->dev);
usb_free_urb(wacom->irq);
- usb_buffer_free(interface_to_usbdev(intf), WACOM_PKGLEN_MAX,
- wacom->wacom_wac->data, wacom->data_dma);
+ usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX,
+ wacom->wacom_wac->data, wacom->data_dma);
kfree(wacom->wacom_wac);
kfree(wacom);
}