2 files changed, 8 insertions, 0 deletions

diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index 4a6366a4212..111a01a747f 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -380,6 +380,7 @@ static int usbfs_rmdir(struct inode *dir, struct dentry *dentry)
         mutex_lock(&inode->i_mutex);
         dentry_unhash(dentry);
         if (usbfs_empty(dentry)) {
+                dont_mount(dentry);
                 drop_nlink(dentry->d_inode);
                 drop_nlink(dentry->d_inode);
                 dput(dentry);
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index df1bae9b048..eaa79c8a9b8 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -366,6 +366,13 @@ rescan:
         if (is_done)
                 done(ep, req, 0);
         else if (ep->is_pingpong) {
+                /*
+                 * One dummy read to delay the code because of a HW glitch:
+                 * CSR returns bad RXCOUNT when read too soon after updating
+                 * RX_DATA_BK flags.
+                 */
+                csr = __raw_readl(creg);
+
                 bufferspace -= count;
                 buf += count;
                 goto rescan;