From: Christoph Fritz <chf.fritz@googlemail.com>
Date: Fri, 28 May 2010 08:45:59 +0000 (+0200)
Subject: ssb: fix NULL ptr deref when pcihost_wrapper is used
X-Git-Tag: v2.6.35-rc2~64^2~21^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=da1fdb02d9200ff28b6f3a380d21930335fe5429;p=pandora-kernel.git

ssb: fix NULL ptr deref when pcihost_wrapper is used

Ethernet driver b44 does register ssb by it's pcihost_wrapper
and doesn't set ssb_chipcommon. A check on this value
introduced with commit d53cdbb94a52a920d5420ed64d986c3523a56743
and ea2db495f92ad2cf3301623e60cb95b4062bc484 triggers:

BUG: unable to handle kernel NULL pointer dereference at 00000010
IP: [<c1266c36>] ssb_is_sprom_available+0x16/0x30

Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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