From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 5 Feb 2015 13:36:25 +0000 (+0100)
Subject: USB: gadget: f_mass_storage: use static attribute groups for sysfs entries
X-Git-Tag: omap-for-v4.1/fixes-rc1~167^2~67
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c7b364f7dd82e8610373b8c6d788db867d7e99db;p=pandora-kernel.git

USB: gadget: f_mass_storage: use static attribute groups for sysfs entries

Instead of manual device_create_file() and device_remove_file() calls,
assign the static attribute groups to the lun device to register.
The RO or RW permissions for some entries are decided in is_visible
callback.  This simplifies the code (also the logic) and avoids the
possible races, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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