1 files changed, 13 insertions, 3 deletions

diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
index 9600a58299db..9f01293600b0 100644
--- a/drivers/usb/host/isp1760-hcd.c
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -17,7 +17,9 @@
 #include <linux/debugfs.h>
 #include <linux/uaccess.h>
 #include <linux/io.h>
+#include <linux/mm.h>
 #include <asm/unaligned.h>
+#include <asm/cacheflush.h>
 
 #include "../core/hcd.h"
 #include "isp1760-hcd.h"
@@ -904,6 +906,14 @@ __acquires(priv->lock)
                         status = 0;
         }
 
+        if (usb_pipein(urb->pipe) && usb_pipetype(urb->pipe) != PIPE_CONTROL) {
+                void *ptr;
+                for (ptr = urb->transfer_buffer;
+                     ptr < urb->transfer_buffer + urb->transfer_buffer_length;
+                     ptr += PAGE_SIZE)
+                        flush_dcache_page(virt_to_page(ptr));
+        }
+
         /* complete() can reenter this HCD */
         usb_hcd_unlink_urb_from_ep(priv_to_hcd(priv), urb);
         spin_unlock(&priv->lock);
@@ -1039,12 +1049,12 @@ static void do_atl_int(struct usb_hcd *usb_hcd)
                 if (!nakcount && (dw3 & DW3_QTD_ACTIVE)) {
                         u32 buffstatus;
 
-                        /* XXX
+                        /*
                          * NAKs are handled in HW by the chip. Usually if the
                          * device is not able to send data fast enough.
-                         * This did not trigger for a long time now.
+                         * This happens mostly on slower hardware.
                          */
-                        printk(KERN_ERR "Reloading ptd %p/%p... qh %p readed: "
+                        printk(KERN_NOTICE "Reloading ptd %p/%p... qh %p read: "
                                         "%d of %zu done: %08x cur: %08x\n", qtd,
                                         urb, qh, PTD_XFERRED_LENGTH(dw3),
                                         qtd->length, done_map,