commit 0fb2c2a1692b8f77be25d38f8802b0142cb6e6bc
author Michal Nazarewicz <m.nazarewicz@samsung.com> Mon Mar 29 14:01:32 2010 +0200
committer Greg Kroah-Hartman <gregkh@suse.de> Thu May 20 13:21:36 2010 -0700
tree a9fee9add6aef38f6ddc2d70e1c94750366d7864
parent dd0543ecc638947d67bdd3a8a41b95ed3c7b885e

USB: gadget: f_mass_storage: per function

Mass Storage Function (MSF) used the same descriptors for each
usb_function instance (meaning usb_function::descriptors of different
functions pointed to the same static area (the same was true for
usb_function::hs_descriptors)).

This would leads to problems if MSF were used in several USB
configurations with different interface and/or endpoint numbers.
Descriptors for all configurations would have interface/endpoint
numbers overwritten by the values valid for the last configuration.

This patch adds code that copies the descriptors each time MSF is
added to USB configuration (that is for each usb_function).

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>