diff options
| -rw-r--r-- | drivers/staging/octeon-usb/octeon-hcd.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c index 9e5476e352b4..cdb0981be2e9 100644 --- a/drivers/staging/octeon-usb/octeon-hcd.c +++ b/drivers/staging/octeon-usb/octeon-hcd.c @@ -499,15 +499,21 @@ static int octeon_alloc_temp_buffer(struct urb *urb, gfp_t mem_flags) static void octeon_free_temp_buffer(struct urb *urb) { struct octeon_temp_buffer *temp; + size_t length; if (!(urb->transfer_flags & URB_ALIGNED_TEMP_BUFFER)) return; temp = container_of(urb->transfer_buffer, struct octeon_temp_buffer, data); - if (usb_urb_dir_in(urb)) - memcpy(temp->orig_buffer, urb->transfer_buffer, - urb->actual_length); + if (usb_urb_dir_in(urb)) { + if (usb_pipeisoc(urb->pipe)) + length = urb->transfer_buffer_length; + else + length = urb->actual_length; + + memcpy(temp->orig_buffer, urb->transfer_buffer, length); + } urb->transfer_buffer = temp->orig_buffer; urb->transfer_flags &= ~URB_ALIGNED_TEMP_BUFFER; kfree(temp); |