From 353d2a69ea2607acd80c6bea7da2ab9bb65d2622 Mon Sep 17 00:00:00 2001
From: Ujjal Roy <royujjal@gmail.com>
Date: Thu, 14 Nov 2013 19:10:42 -0800
Subject: [PATCH] mwifiex: fix issues in driver unload path for USB chipsets

1) After driver load failure, clear 'card->adapter' instead of
card pointer so that card specific cleanup is performed later
when user unloads the driver.

2) Clear usb_card pointer in disconnect handler to avoid invalid
memory access when user unloads the driver after removing the
card.

Signed-off-by: Ujjal Roy <royujjal@gmail.com>
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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