From 9c3a6670863033df421c8e46f79f383cf3a922ee Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 8 Nov 2014 13:59:42 +0100
Subject: [PATCH] b43: fix NULL pointer dereference in b43_phy_copy()
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phy_read and phy_write are not set for every phy any more sine this:
commit d342b95dd735014a590f9051b1ba227eb54ca8f6
Author: Rafał Miłecki <zajec5@gmail.com>
Date:   Thu Jul 31 21:59:43 2014 +0200

    b43: don't duplicate common PHY read/write ops

b43_phy_copy() accesses phy_read and phy_write directly and will fail
with some phys. This patch fixes the regression by using the
b43_phy_read() and b43_phy_write() functions which should be used for
read and write access.

This should fix this bug report:
https://bugzilla.kernel.org/show_bug.cgi?id=87731

Reported-by: Volker Kempter <v.kempter@pe.tu-clausthal.de>
Tested-by: Volker Kempter <v.kempter@pe.tu-clausthal.de>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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