From: Amitkumar Karwar <akarwar@marvell.com>
Date: Tue, 23 Jul 2013 02:17:51 +0000 (-0700)
Subject: mwifiex: add unregister_dev handler for usb interface
X-Git-Tag: v3.12-rc1~132^2~297^2^2~68
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2739a95d708c67ff541826f79ef0b2d19320306f;p=pandora-kernel.git

mwifiex: add unregister_dev handler for usb interface

Clear the data pointer stored in USB interface structure in
this handler. This helps to return from mwifiex_usb_disconnect()
if driver deinitialization is already performed while handling
an error path for mwifiex_usb_probe().

USB8797 card gets enumerated twice. First enumeration is for
firmware download and second enumeration expects firmware
initialization. mwifiex_usb_probe() always takes care of
deinitialization for first enumeration after firmware download.

Also, this change matches our handling for SDIO and PCIe
interfaces.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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