tree 5d84bde672bd70da59324a88a509c664ba37cb05
parent 36f90b0a2ddd60823fe193a85e60ff1906c2a9b3
author Mathias Nyman <mathias.nyman@linux.intel.com> 1453823404 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1454536542 -0800

Revert "xhci: don't finish a TD if we get a short-transfer event mid TD"

This reverts commit e210c422b6fd ("xhci: don't finish a TD if we get a
short transfer event mid TD")

Turns out that most host controllers do not follow the xHCI specs and never
send the second event for the last TRB in the TD if there was a short event
mid-TD.

Returning the URB directly after the first short-transfer event is far
better than never returning the URB. (class drivers usually timeout
after 30sec). For the hosts that do send the second event we will go
back to treating it as misplaced event and print an error message for it.

The origial patch was sent to stable kernels and needs to be reverted from
there as well

Cc: stable@vger.kernel.org
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>