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>

5 files changed, 24 insertions, 24 deletions

diff --git a/drivers/input/tablet/acecad.c b/drivers/input/tablet/acecad.c
index 670c61c5a516..c0470163dc67 100644
--- a/drivers/input/tablet/acecad.c
+++ b/drivers/input/tablet/acecad.c
@@ -155,7 +155,7 @@ static int usb_acecad_probe(struct usb_interface *intf, const struct usb_device_
                 goto fail1;
         }
 
-        acecad->data = usb_buffer_alloc(dev, 8, GFP_KERNEL, &acecad->data_dma);
+        acecad->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &acecad->data_dma);
         if (!acecad->data) {
                 err= -ENOMEM;
                 goto fail1;
@@ -241,7 +241,7 @@ static int usb_acecad_probe(struct usb_interface *intf, const struct usb_device_
 
         return 0;
 
- fail2: usb_buffer_free(dev, 8, acecad->data, acecad->data_dma);
+ fail2: usb_free_coherent(dev, 8, acecad->data, acecad->data_dma);
  fail1: input_free_device(input_dev);
         kfree(acecad);
         return err;
@@ -256,7 +256,7 @@ static void usb_acecad_disconnect(struct usb_interface *intf)
                 usb_kill_urb(acecad->irq);
                 input_unregister_device(acecad->input);
                 usb_free_urb(acecad->irq);
-                usb_buffer_free(interface_to_usbdev(intf), 10, acecad->data, acecad->data_dma);
+                usb_free_coherent(interface_to_usbdev(intf), 10, acecad->data, acecad->data_dma);
                 kfree(acecad);
         }
 }
diff --git a/drivers/input/tablet/aiptek.c b/drivers/input/tablet/aiptek.c
index 4be039d7dcad..51b80b08d467 100644
--- a/drivers/input/tablet/aiptek.c
+++ b/drivers/input/tablet/aiptek.c
@@ -1711,8 +1711,8 @@ aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id)
                 goto fail1;
         }
 
-        aiptek->data = usb_buffer_alloc(usbdev, AIPTEK_PACKET_LENGTH,
-                                        GFP_ATOMIC, &aiptek->data_dma);
+        aiptek->data = usb_alloc_coherent(usbdev, AIPTEK_PACKET_LENGTH,
+                                          GFP_ATOMIC, &aiptek->data_dma);
         if (!aiptek->data) {
                 dev_warn(&intf->dev, "cannot allocate usb buffer\n");
                 goto fail1;
@@ -1884,8 +1884,8 @@ aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id)
 
  fail4: sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
  fail3: usb_free_urb(aiptek->urb);
- fail2: usb_buffer_free(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data,
-                        aiptek->data_dma);
+ fail2: usb_free_coherent(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data,
+                          aiptek->data_dma);
  fail1: usb_set_intfdata(intf, NULL);
         input_free_device(inputdev);
         kfree(aiptek);
@@ -1909,9 +1909,9 @@ static void aiptek_disconnect(struct usb_interface *intf)
                 input_unregister_device(aiptek->inputdev);
                 sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
                 usb_free_urb(aiptek->urb);
-                usb_buffer_free(interface_to_usbdev(intf),
-                                AIPTEK_PACKET_LENGTH,
-                                aiptek->data, aiptek->data_dma);
+                usb_free_coherent(interface_to_usbdev(intf),
+                                  AIPTEK_PACKET_LENGTH,
+                                  aiptek->data, aiptek->data_dma);
                 kfree(aiptek);
         }
 }
diff --git a/drivers/input/tablet/gtco.c b/drivers/input/tablet/gtco.c
index 866a9ee1af1a..8ea6afe2e992 100644
--- a/drivers/input/tablet/gtco.c
+++ b/drivers/input/tablet/gtco.c
@@ -850,8 +850,8 @@ static int gtco_probe(struct usb_interface *usbinterface,
         gtco->usbdev = usb_get_dev(interface_to_usbdev(usbinterface));
 
         /* Allocate some data for incoming reports */
-        gtco->buffer = usb_buffer_alloc(gtco->usbdev, REPORT_MAX_SIZE,
-                                        GFP_KERNEL, &gtco->buf_dma);
+        gtco->buffer = usb_alloc_coherent(gtco->usbdev, REPORT_MAX_SIZE,
+                                          GFP_KERNEL, &gtco->buf_dma);
         if (!gtco->buffer) {
                 err("No more memory for us buffers");
                 error = -ENOMEM;
@@ -982,8 +982,8 @@ static int gtco_probe(struct usb_interface *usbinterface,
  err_free_urb:
         usb_free_urb(gtco->urbinfo);
  err_free_buf:
-        usb_buffer_free(gtco->usbdev, REPORT_MAX_SIZE,
-                        gtco->buffer, gtco->buf_dma);
+        usb_free_coherent(gtco->usbdev, REPORT_MAX_SIZE,
+                          gtco->buffer, gtco->buf_dma);
  err_free_devs:
         input_free_device(input_dev);
         kfree(gtco);
@@ -1005,8 +1005,8 @@ static void gtco_disconnect(struct usb_interface *interface)
                 input_unregister_device(gtco->inputdevice);
                 usb_kill_urb(gtco->urbinfo);
                 usb_free_urb(gtco->urbinfo);
-                usb_buffer_free(gtco->usbdev, REPORT_MAX_SIZE,
-                                gtco->buffer, gtco->buf_dma);
+                usb_free_coherent(gtco->usbdev, REPORT_MAX_SIZE,
+                                  gtco->buffer, gtco->buf_dma);
                 kfree(gtco);
         }
 
diff --git a/drivers/input/tablet/kbtab.c b/drivers/input/tablet/kbtab.c
index 6682b17bf844..d31b9c793554 100644
--- a/drivers/input/tablet/kbtab.c
+++ b/drivers/input/tablet/kbtab.c
@@ -129,7 +129,7 @@ static int kbtab_probe(struct usb_interface *intf, const struct usb_device_id *i
         if (!kbtab || !input_dev)
                 goto fail1;
 
-        kbtab->data = usb_buffer_alloc(dev, 8, GFP_KERNEL, &kbtab->data_dma);
+        kbtab->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &kbtab->data_dma);
         if (!kbtab->data)
                 goto fail1;
 
@@ -182,7 +182,7 @@ static int kbtab_probe(struct usb_interface *intf, const struct usb_device_id *i
         return 0;
 
  fail3: usb_free_urb(kbtab->irq);
- fail2: usb_buffer_free(dev, 10, kbtab->data, kbtab->data_dma);
+ fail2: usb_free_coherent(dev, 10, kbtab->data, kbtab->data_dma);
  fail1: input_free_device(input_dev);
         kfree(kbtab);
         return error;
@@ -197,7 +197,7 @@ static void kbtab_disconnect(struct usb_interface *intf)
                 usb_kill_urb(kbtab->irq);
                 input_unregister_device(kbtab->dev);
                 usb_free_urb(kbtab->irq);
-                usb_buffer_free(interface_to_usbdev(intf), 10, kbtab->data, kbtab->data_dma);
+                usb_free_coherent(interface_to_usbdev(intf), 10, kbtab->data, kbtab->data_dma);
                 kfree(kbtab);
         }
 }
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index f46502589e4e..191197cd83e3 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -556,8 +556,8 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
                 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 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
         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 @@ static void wacom_disconnect(struct usb_interface *intf)
         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);
 }