commit 82341b3690fce8f70998e3cfb79fbffff0eb7e6b
author Anton Vorontsov <avorontsov@ru.mvista.com> Thu Dec 25 17:15:11 2008 +0300
committer Greg Kroah-Hartman <gregkh@suse.de> Mon Feb 09 11:19:47 2009 -0800
tree 37df00d0bbb33cd2267b56222108ca22f375b8b6
parent ef84e4055f3561495c4c0e0dfb0b9f4a6e20479d

USB: fsl_qe_udc: Fix muram corruption by disabled endpoints

Before freeing an endpoint's muram memory, we should stop all activity
of the endpoint, otherwise the QE UDC controller might do nasty things
with the muram memory that isn't belong to that endpoint anymore.

The qe_ep_reset() effectively flushes the hardware fifos, finishes all
late transaction and thus prevents the corruption.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>