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/media/dvb/dvb-usb/usb-urb.c b/drivers/media/dvb/dvb-usb/usb-urb.c
index f9702e3..86d6893 100644
--- a/drivers/media/dvb/dvb-usb/usb-urb.c
+++ b/drivers/media/dvb/dvb-usb/usb-urb.c
@@ -96,8 +96,9 @@
while (stream->buf_num) {
stream->buf_num--;
deb_mem("freeing buffer %d\n",stream->buf_num);
- usb_buffer_free(stream->udev, stream->buf_size,
- stream->buf_list[stream->buf_num], stream->dma_addr[stream->buf_num]);
+ usb_free_coherent(stream->udev, stream->buf_size,
+ stream->buf_list[stream->buf_num],
+ stream->dma_addr[stream->buf_num]);
}
}
@@ -116,7 +117,7 @@
for (stream->buf_num = 0; stream->buf_num < num; stream->buf_num++) {
deb_mem("allocating buffer %d\n",stream->buf_num);
if (( stream->buf_list[stream->buf_num] =
- usb_buffer_alloc(stream->udev, size, GFP_ATOMIC,
+ usb_alloc_coherent(stream->udev, size, GFP_ATOMIC,
&stream->dma_addr[stream->buf_num]) ) == NULL) {
deb_mem("not enough memory for urb-buffer allocation.\n");
usb_free_stream_buffers(stream);
diff --git a/drivers/media/dvb/ttusb-dec/ttusb_dec.c b/drivers/media/dvb/ttusb-dec/ttusb_dec.c
index 53baccb..fe1b803 100644
--- a/drivers/media/dvb/ttusb-dec/ttusb_dec.c
+++ b/drivers/media/dvb/ttusb-dec/ttusb_dec.c
@@ -1257,7 +1257,7 @@
if(!dec->irq_urb) {
return -ENOMEM;
}
- dec->irq_buffer = usb_buffer_alloc(dec->udev,IRQ_PACKET_SIZE,
+ dec->irq_buffer = usb_alloc_coherent(dec->udev,IRQ_PACKET_SIZE,
GFP_ATOMIC, &dec->irq_dma_handle);
if(!dec->irq_buffer) {
usb_free_urb(dec->irq_urb);
@@ -1550,8 +1550,8 @@
usb_free_urb(dec->irq_urb);
- usb_buffer_free(dec->udev,IRQ_PACKET_SIZE,
- dec->irq_buffer, dec->irq_dma_handle);
+ usb_free_coherent(dec->udev,IRQ_PACKET_SIZE,
+ dec->irq_buffer, dec->irq_dma_handle);
if (dec->rc_input_dev) {
input_unregister_device(dec->rc_input_dev);