From: NeilBrown <neilb@suse.de>
Date: Thu, 11 Oct 2012 02:50:12 +0000 (+1100)
Subject: md/raid5: protect debug message against NULL derefernce.
X-Git-Tag: v3.7-rc1~10^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b97390aec4756373168ad2976e1f117b610513ea;p=pandora-kernel.git

md/raid5: protect debug message against NULL derefernce.

The pr_debug in add_stripe_bio could race with something
changing *bip, so it is best to hold the lock until
after the pr_debug.

Reported-by: "Jianpeng Ma" <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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