tree 070d744ef1567d6d7fe949ad364c1adaabac02ce
parent b35f34f66943fa1b8feadb037d054a141723f7fe
author Felipe Balbi <felipe.balbi@linux.intel.com> 1475055211 +0300
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1483697774 +0100

usb: gadget: composite: always set ep->mult to a sensible value

commit eaa496ffaaf19591fe471a36cef366146eeb9153 upstream.

ep->mult is supposed to be set to Isochronous and
Interrupt Endapoint's multiplier value. This value
is computed from different places depending on the
link speed.

If we're dealing with HighSpeed, then it's part of
bits [12:11] of wMaxPacketSize. This case wasn't
taken into consideration before.

While at that, also make sure the ep->mult defaults
to one so drivers can use it unconditionally and
assume they'll never multiply ep->maxpacket to zero.

Cc: <stable@vger.kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>